Cheating dad beats fiancee to death; burns body in front of mistress

A 32-year old man is charged with two counts of first degree murder and three counts of solicitation to commit murder after beating his fiancee to death with a baseball bat and burning her body in front of his mistress.

Patrick Frazee, allegedly launched the savage attack on Kelsey Berreth, the mother of his one-year-old daughter, on November 22.

Colorado police claim he blindfolded Ms Berreth, 29, from Washington, and asked her to guess the scent of a candle.

He then bludgeoned her to death with the bat in a prolonged beating.

A court heard Frazee had Thanksgiving dinner with his family just hours after the horrific murder of his partner.

Prosecutors claim he then left his daughter Kaylee in the care of his mother before returning home to begin covering his tracks.

Frazee then allegedly phoned Krystal Jean Lee, who he was having a romantic relationship with, and demanded she help clean up the crime scene.

Law enforcement official Gregg Slater testified in court that the accused told Ms Lee: "You have a mess to clean up."

Ms Lee, who is claiming she acted out of fear for her own safety, is said to have drove 13 hours from Idaho to Colorado to be with Frazee.

Shortly after this, police claim Kelsey Berreth's body was burned along with the baseball bat on a pile of haystacks at a farm.

She was reported missing and police launched a search for her a short time later.

The remains of Ms Berreth, a flight instructor, have never been found.

A few weeks after her disappearance, police arrested Frazee when Lee began giving evidence against him.

She took police to an area of land that had visible burn marks with traces of accellerant.