CRIPPLE CREEK, Colo. (KRDO) -- On Tuesday morning, Krystal Lee will learn her fate for playing a part in the 2018 murder of Kelsey Berreth.
Lee admitted to investigators in December 2018 for cleaning up Berreth's apartment after Patrick Frazee asked her to travel from her home in Idaho and come to Colorado after he killed her.
She claims Frazee told her he hit Berreth over the head with a bat and later put her body in a black tote, before transporting it to a ranch he rented near Cripple Creek.
About a month later, when confronted by FBI agents, Lee struck a deal with the 4th Judicial District Attorney's office who was overseeing the case.
Lee pleaded guilty to tampering with evidence, a low-level felony, in a deal for cooperating and testifying against Frazee. The maximum sentence she can receive is three years in prison.
Moments after Frazee was convicted, 4th Judicial District Attorney said about Lee, "We did a deal with the devil, there's no if, ands, or buts about that and I'm not proud of that. But there's no question that Kelsey wouldn't have had assured justice today without making that deal with the devil."
During the November murder trial, Lee took the stand and explained how Berreth died and what Frazee ordered her to do in order to get rid of blood evidence.
While their deal wasn't ideal, prosecutors credit their conviction against Frazee to Lee's testimony.
"[Lee] came forward with all this information that we didn't have," said Jennifer Viehman, a prosecutor in the case. "We didn't know. We didn't know how Kelsey had died. We knew something terrible had happened to her."
Her sentencing hearing begins at 9 a.m. at the Teller County Courthouse in Cripple Creek.