Colorado dentist murder case who flew to Jim Craig's side as his wife lay dying in the hospital from his 'poisoned protein shakes' is REVEALED as Texas orthodontist, 49, who is divorcing her husband

• DailyMail.com can reveal that Karin Cain, 49, from Marble Falls, Texas, is the woman who alleged wife-poisoner Jim Craig was having an affair with
• Evidence in Craig's case shows an itinerary for Cain to fly to Colorado to be with her lover at the time his wife was in the hospital
• Cain, who is going through a divorce, called police on a DailyMail.com photographer and would not answer any questions 

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• The mistress who has found herself at the center of the Colorado dentist murder case can be identified for the first time today by DailyMail.com.

  She is orthodontist Karin Cain, 49, who is currently in the middle of a divorce from her husband Jason.

  On Wednesday we caught up with Cain as she left her office in Marble Falls, Texas, in her medical scrubs and purple sneakers, for a lunch break.

  She was still wearing a wedding band on her ring finger despite currently going through a divorce from her husband Jason.

  She did not respond to questions about her alleged affair with porn-addicted dentist James Craig who has been charged with poisoning his wife.

  Instead, she called police on a DailyMail.com photographer. The cops agreed he was just doing his job and told him that Cain had told them she knew the media was looking for her because of her relationship with Craig.

  Craig, 45, 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, 43, 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.