The mistress who found herself at the center of the Colorado dentist murder case broke her silence on Wednesday - claiming the relationship she shared with the man who allegedly poisoned his wife to death by lacing her protein shakes with potassium cyanide - was built on lies.
Karin Cain, 49, told Good Morning America in an ABC exclusive, that she was deceived by Jim Craig, who was charged with first-degree murder in March, a man who she 'thought' she was falling in love with.
The orthodontist, who is currently in the middle of a divorce from her own husband, Jason, said the murder suspect lied to her about being 'deep into a divorce,' as well as the values they shared, and the reason why his wife was dying.
'If I had known what was true, I would not have been with this person,' she said to ABC. 'I didn't willingly have a relationship with somebody who was in a marriage.'
Craig, 45, faces a preliminary hearing Wednesday morning in which prosecutors plan to convince the judge there is enough evidence to charge him with first degree murder.

Karin Cain, 49, told Good Morning America in an ABC exclusive, that she was deceived by Jim Craig, who was charged with first-degree murder in March, a man who she 'thought' she was falling in love with

Craig was seen entering the Arapahoe District Court for his arraignment on first-degree murder charges on March 23. He faces a preliminary hearing Wednesday morning in which prosecutors plan to convince the judge there is enough evidence to charge him with first degree murder
.@ABC EXCLUSIVE: The woman dating a Colorado dentist accused of poisoning his wife is breaking her silence. @mattgutmanabc has the interview. pic.twitter.com/o2OVcrVNmr
— Good Morning America (@GMA) July 12, 2023The three week relationship, Cain says, was built on lies.
'He told me they hadn't been living together, and he had an apartment,' she said.
In reality, the forty-five year old father of six was declaring his love and devotion to his wife Angela in her final days, while also flying in his Texas mistress while she was dying.
Crain visited the dentist while his wife was in the hospital in critical condition. He told her he needed the support and they met for dinner twice.
'He at no point seemed stressed or anxious ... I mean really I had to drag it out of him are you sure you're okay because you seem okay.'
When his wife eventually died, Cain was investigated as it was alleged that he killed his wife to start a new life with Cain.
When asked about her reaction to finding out her potential future love was an alleged murderer who killed his own wife, Cain said she couldn't even process the facts, as they 'just don't fit' in her reality.
She denied the two had any plans together after the death of his wife, and said she didn't 'like' being labeled a mistress.
'There had been no planning our future together,' she claimed.
She also expressed her sympathy for the six children who just lost their mother in an incomprehensible way.
'I can't even imagine the loss of a family member,' she said, 'and to consider that it could be at the hands of someone in the family for 25 years.'
Cain said she has been cooperating with authorities since the start of the investigation.
The dentist maintains his innocence. He has not entered a plea that will likely happen 3-6 weeks from now at the time of the arraignment.

DailyMail.com caught up with orthodontist Karin Cain in Marble Falls, Texas in March. She spoke with ABC and denied having any plans with the dentist after the death of his wife, and said she didn't 'like' being labeled a mistress.

Craig 'had multiple affairs with several women' and told his wife he had been addicted to pornography since he was a teenager according to his arrest warrant

Karin Cain and her husband Jason have two children, daughter Karson, now 21, and son Kooper, 19
Craig, who is from Aurora, Colorado, is being held on suspicion of murdering his wife of 24 years, Angela, by poisoning her. Investigators claim he mixed potassium cyanide in her protein drinks.
Angela first started feeling sick on March 6. By March 15, she was in hospital for the third time complaining of headaches and nausea, and quickly suffered a seizure. She was taken off life support on March 18.
Cain’s name was included in two places in court documents filed in Craig’s case in Colorado, although many other times her name was redacted.
One was on an image of a Southwest plane itinerary from Austin – the nearest airport to Cain’s home in Marble Falls – to Denver, that included the name Karin Kathleen Cain. She was due to fly out on March 8 and return two days later,
'It appeared that James had REDACTED visit him while his wife was in the hospital sick,' wrote Aurora Detective Bobbi Olson in the affidavit.
The other was at the bottom of a March 16 email and included her professional qualifications and work address.
In the email to her alleged lover, she wrote: 'Hi honey, I am so sorry for what has transpired this week in your world. I am sorry II am not a part of your world to be of more help to you and instead I am pulling you away.
‘This is so hard,’ she continued. ‘I want to be and do whatever I can to support and encourage you and I don’t want to add to what has become an incredibly difficult time.

She was still wearing her wedding band, despite currently going through a divorce from husband Jason. She said she wouldn't have engaged in her three week relationship with the alleged murderer if she had known he was lying to her

Cain has her own business and says on her website that she is the only orthodontist in Burnet and Llano counties, west of Austin. She expressed her sympathy for the six children who just lost their mother

Cain and her family have lived in Marble Falls, Texas, for 24 years.

Craig sat alongside deputy public defender Patrick Thompson (right) and public defender Katie Telfer during his brief arraignment at Arapahoe District Court Thursday morning
‘I can’t imagine what it is doing to you to walk your kids through this. I do want to give you any comfort I can but I do not feel it is right for me to mix in with all those gathering to mourn Angela either and I do not want to meet your family as a friend and try to conceal what I feel for you.'
'I am praying for you and seeking Gods wisdom for this time.’
She signed off with the words ‘I love you’.
According to Cain’s online biography, she has lived in Marble Falls since 2004 and has two adult children, a daughter Karson, 21, and a son Kooper, 19.
She says on her website that she is the only orthodontic specialist in Burnet and Llano counties, west of Austin.
Despite her relationship with Craig, she seems to have a low opinion of general dentists as she stresses why patients should use orthodontic specialists.
'Unfortunately, many general dentists who wish to increase their income by adding orthodontic treatment, or even focusing a majority of their clinic time on orthodontics, are not up front with their patients and even allow their staff to affirm that they are an orthodontist when questioned,' she writes on her website.
'Many will pay for membership in official sounding groups and go to weekend courses to add certificates to their credentials. As a consumer it is very confusing.'
'Dr. Cain’s years of education, training, and experience allow her to provide the highest quality, efficient, and most effective orthodontic care to patients of all ages,' she adds.
Craig's case has caused a media frenzy. He is a Mormon who is allegedly addicted to porn, had numerous affairs over the years and successfully hid his drug abuse and gambling problems.
Angela was said to be determined to work on her marriage to the dentist despite his multiple infidelities and other issues in their relationship.
Although she raised her concerns with her sister – saying several times that she would leave her husband – he always managed to talk her round.
Craig had 'run the dental office into the ground' according to his wife, and the family's financial situation was said to be 'dire'.

Jim Craig, 45, was arrested for murder after detectives discovered his wife Angela Craig, 43, had been fatally poisoned

James and Angela Craig pose for a family picture with their six children aged eight to 20

Craig was a practicing dentist and part of the Summerbrook dental office in Colorado, which filed for bankruptcy protection in 2021
Heartbreaking messages show the mother-of-six complaining about how she felt 'dizzy' and 'nauseous' as she deteriorated in hospital from what cops say was poison put in her smoothies by James.
But Angela continued to tell her husband how much she loves him.
The dentist sent his wife several loving messages, including telling her that he had written her a song, despite police saying he knew she was slowly being poisoned.
He was arrested in Aurora, accused of killing his wife by poisoning her protein shakes, all the while conducting an affair with Cain.
Messages revealed by police in an arrest affidavit show seemingly loving messages between the married couple as social media photographs all show Angela showering her husband in kisses for loved-up snaps on their shared Facebook page.
While his wife deteriorated in hospital and was dealing with mystified doctors, Craig also flew his mistress over from Texas while simultaneously messaging his wife to say he 'wished he could stay longer' at the hospital with her.
Angela and Craig started discussing her strange symptoms via text on March 6, just a day after she returned from a short trip to visit her sister in Utah – where she showed no signs of ill health.
Messages obtained by police show Craig thanking her for making his drink before he admits to giving her too many B vitamins in her protein shake.
She said: 'You're welcome baby, I love you too,' before adding that her head feels 'funny and dizzy' and initially blaming it on caffeine.
The pair continue to chat about her feeling unwell, with Craig insisting that he will 'come home' from the surgery to care for his sick wife.
Angela then reassures her husband at 6.38am on March 7 that he doesn't have to miss work – with her sister later telling police that their finances were dire and Craig's dental surgery was being 'run into the ground.'
She then questions if her illness is due to a 'sinus infection' before telling her husband: I'm not sure what you were expecting, I don't think this is a sleep thing'.
He sent repeated declarations of love before flying in his mistress from March 8 to March 10 – with her arriving just two days after he is accused of administering the poison on March 6.
Writing to his wife after she complained of nausea, headaches, exhaustion and vomiting, he said: 'I love you. It was so nice hanging out with you and just watching a show and snuggling.

Craig allegedly first gave his wife the poison on March 6, in a shake he mixed before their workout


Text messages Craig exchanged with Angela while she was in hospital fighting for her life


Craig admitted to drugging Angela five or six years ago and referenced the incident in a text message to his wife while she is hospitalized
'I am so grateful that the last couple of days have allowed me to have more flexibility in my schedule.'
Angela then references 'reliving the past', which her sister told police was referring to an incident where Craig had drugged her previously – something he claimed was because he intended to take his own life and didn't want her to stop him.
She then thanks him for checking on her repeatedly throughout March 8, before saying 'I love you' and apologizing for falling asleep on the sofa.'
The mother-of-six was then admitted to Parker Adventist Hospital on March 9, three days after she was initially seen and released. She was ultimately discharged on March 14 before her death the next day.
On March 10, the day his mistress left Colorado, Craig tells her to 'get some rest finally', to which she replies, 'I love having you here I just don't wanna wear you out. Trying to take care of everything at home and be here with me.'
He said: 'I'm fine. It's really busy and crazy but that's always the case when you're not around. I want to be up there with you 24/7.'
It appears he then came back to the hospital to visit his wife, with her texting him at 9pm to say 'Thank you for coming back. I miss you so much and it's nice to have some time. I love you.'
Craig, hours after his mistress jumped on a plane to Texas, messages his wife at midnight to tell her that he 'workup dreaming about making love' to her.
On March 12 he offered to have her hooked up to an IV at home, offering to fill it with fluids from his office – with Angela initially refusing before saying, 'we can see if it would make you feel better'.
She then asks Craig to bring her several personal items before going for more medical tests and texting her husband to say, 'My brain is normal, so there!' I hope you're getting some sleep. I miss you.'
Later in the evening she replied to a message from Craig which said 'I want to be close to you', saying 'I love you too baby! Thank you for handling so much. Maybe someone will figure me out tonight'.
The couple continue to discuss her symptoms, before she tells him the day before she returns home that she needs to makes sure she 'doesn't feel like vomiting' before they sleep together.
In their final exchange before she suffered a seizure, Angela told her husband that she was 'having trouble staying upright' with him responding several times as she was already rushed to hospital after suffering a seizure.
When speaking to police Angela's sister said that Craig had had 'multiple affairs with several women' and said he was 'addicted to porn since he was a teenager.'
Angela also complained to her sister that during a recent trip to Las Vegas Craig had gambled away over $2,000 – despite the family struggling financially.
She was pronounced brain dead on March 18, twelve days after Craig is accused of poisoning her.

The family home is shuttered up, a small sign posted on the door asks for privacy

Sources close to the Craigs' Mormon church said members were asked to help 'organize' the mudroom and basement at their Aurora home (pictured) - which some now wonder if it may have been a crime scene

Craig had asked friends, family, and members of his church to remain tight-lipped about Angela's condition, with a similar plea being issued to the wider church community two days after her death
Craig would not allow hospital staff to conduct an autopsy, with family members urging him to allow the process in case the cause was 'genetic' and to see if it could prevented from passing down their family.
But he denied the request, saying he felt 'if they couldn't figure out what was wrong with her when she was alive then he wouldn't let them poke her more when she was dead'.
According to the charging documents, Craig had researched poison on his office computer.
Search terms included: 'how many grams of pure arsenic will kill a human'; 'Is Arsenic Detectable in Autopsy'; 'Top 5 Undetectable Poisons That Show No Signs of Foul Play'; 'how to make poison,' and 'The Top 10 Deadliest Plants (They Can Kill You).'
Craig ordered more poison, with a delivery of cyanide dispatched on March 13, and Angela accusing her husband of poisoning her when she was discharged on March 14.
He was reported to the authorities by one of his co-workers, who was suspicious about his behavior and the poison deliveries.
The affidavit said Craig planned to 'end his wife's life by searching for ways to kill someone undetected, providing her poisons that align with her hospitalized symptoms, and working on starting a new life with [his lover].'
The dentist allegedly ordered the arsenic online on February 27 and received a package at home on March 4.
Craig's second package arrived at work on March 13 and when an employee opened the box she found a bio hazard sticker and a canister marked 'Potassium Cyanide'.
She googled the chemical compound and realized the symptoms of cyanide poisoning was similar to the symptoms Angela was experiencing.
Craig may have recruited members of his church into helping him clean up a potential crime scene at his home the day before his wife, Angela, was pronounced dead, DailyMail.com revealed.
According to a source close to the Church of Jesus Christ of Latter-Day Saints Southshore Ward, of which the Craig family is a part, members were asked to help 'organize' Craig's mudroom and basement at their home in Aurora, while Angela was in hospital and ahead of other family coming into town.
The source told DailyMail.com: 'It was an oddly specific request. It's quite common in the community for us to go into somebody's house and help when there's been a new baby or sickness, but the language of this request was so heightened.
'And looking back at the timing of the communication, I can't help wondering if that was something Jim asked for knowing that it might be a crime scene later.'
The request was sent to church members via email shortly after 1pm on March 17.
Major Crimes homicide detectives had already executed a search warrant on the family residence at 8:45am the previous morning.
And less than 24 hours after the church members search, Angela, by then intubated and unconscious in intensive care, was pronounced brain dead.
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