(AP) — Prosecutors have filed a murder charge against a defendant who’s been awaiting trial on lesser charges in the slaying of a Lincoln man.

The charge was leveled Wednesday against 24-year-old Miguel Castillo. He’s accused of killing 25-year-old Tyler Schoenrock. Schoenrock’s body was found on a rural road north of Lincoln on Dec. 30

Castillo previously was charged with being an accessory to murder. Investigators say Castillo and 20-year-old Adrian Casares took Schoenrock from his Lincoln home and then left him for dead on the road.

Two more charges were filed Wednesday against Casares: accessory to murder and possession of a firearm by a felon. He’s already been charged with terroristic threats and use of a firearm.

Both men have pleaded not guilty.