An amended wrongful death lawsuit claims Patrick Frazee (shown) murdered his fiancee Kelsey Berreth over gaining custody of their one-year-old daughter, Kaylee
The parents of the missing Colorado mom Kelsey Berreth introduced a potential motive for murder in an amended wrongful death lawsuit brought against Kelsey's former fiance Patrick Frazee.
Frazee's mistress Krystal Lee Kenney came forward last week to accuse him of murdering Kelsey after she confessed to destroying the victim's cell phone.
Kelsey Berreth, 29, was last seen alive on Thanksgiving Day at a grocery store in Woodland Park, Colorado.
According to the updated language of the suit submitted since then by attorney Angela Jones, 'Frazee had motive to kill Kelsey in that he wanted full custody' of their one-year-old daughter Kaylee.
When Kelsey's mother Cheryl Berreth called Frazee on December 2 to find out if everything was 'okay,' Frazee allegedly responded with 'here's the story...' before launching into what the lawsuit describes as 'false statements, misrepresentations, and/or calculated omissions.'
A judge ruled that Cindy Berreth (above with Kelsey and Kaylee) and her husband would maintain temporary custody of the baby with a hearing set for April
Cheryl Berreth alleges that Frazee told her that the couple had broken up on or around Thanksgiving, meeting at a Cracker Barrel restaurant on Thanksgiving Day itself.
He claimed that Kelsey left Kaylee with him while she 'figured out what she was going to do' and that they both agreed to a 50/50 split in custody.
The lawsuit also listed what it considered to be untrue statements Frazee made to the press, including a claim by the accused murderer that Kelsey had 'issues' that would warrant him 'getting full custody.'
During that phone call with Chelsea, Frazee allegedly complained about Kelsey's behavior saying that their relationship had gone bad, that she kept 'putting him down' in front of their daughter and that she often would not return home immediately after work to go have dinner with co-workers.
