DENVER (CBS4) – A man accused of being an accessory in the shooting death of another man’s his ex-girlfriend in 2011 has pleaded guilty.

Lynn Kimbrough with the Denver District Attorney’s Office said Richard Leavitt, 28, pleaded guilty to second-degree murder of 22-year-old Andrea Roan. Leavitt is a co-defendant with Ryan Miller, 28, who is charged with one count of first-degree murder.

“The charges allege that on Dec. 16, 2011, Miller shot and killed Roan, a former girlfriend, as she was driving away from her home,” Kimbrough said in a statement. “Leavitt was accused of driving Miller to and from the crime scene and helping to hide the murder weapon.”

Andrea Roan (credit: CBS)

Miller remains in custody and is scheduled for trial in April.

Leavitt is scheduled to be sentenced on May.