TOPEKA, Kan. (AP) — A man who prosecutors say helped a gunman escape after he fatally shot a Topeka police officer has been found incompetent to stand trial.

A Shawnee County court has ordered 31-year-old Randy Allen Ridens Jr. of Topeka to be sent to Larned State Hospital for mental evaluation.

Ridens is charged with obstructing the apprehension of 30-year-old Ross Preston Lane. Ridens allegedly drove Lane out of town on a stolen motorcycle.

Investigators say Lane fatally shot police Cpl. Jason Harwood in September. He is charged with capital murder of a law enforcement officer and weapons charges. He has pleaded not guilty.

The Topeka Capital-Journal reports that in January, a psychiatrist found Ridens incompetent to stand trial. He was committed to Larned for no more than 90 days of treatment.