Homicide

Pennsylvania State Police barracks ambush suspect due to enter plea

FILE- In this Jan. 5, 2015, file photo, Eric Frein, left, is led from the Pike County Courthouse after his preliminary hearing in Milford, Pa. Frein is charged with fatally shooting a Pennsylvania state trooper and wounded another during an ambush at their barracks in September. A formal arraignment for Frein is scheduled for Thursday, Jan. 29, 2015, at the courthouse in Milford. (AP Photo/David Kidwell, File)

FILE- In this Jan. 5, 2015, file photo, Eric Frein, left, is led from the Pike County Courthouse after his preliminary hearing in Milford, Pa. Frein is charged with fatally shooting a Pennsylvania state trooper and wounded another during an ambush at their barracks in September. A formal arraignment for Frein is scheduled for Thursday, Jan. 29, 2015, at the courthouse in Milford. (AP Photo/David Kidwell, File)  (The Associated Press)

A survivalist accused of killing one state trooper and wounding another in a barracks ambush is expected to enter a plea of not guilty.

A formal arraignment for Eric Frein (freen) is scheduled for Thursday at the courthouse in Milford. District Attorney Ray Tonkin has said he he expects Frein to participate by video from the Pike County Correctional Facility.

Frein's attorney says he expects his client to plead not guilty to murder, terrorism and related charges in the September ambush that killed Cpl. Bryon Dickson and severely wounded Trooper Alex Douglass outside the state police station in Blooming Grove. Frein was captured Oct. 30 after a 48-day manhunt in the Pocono Mountains in northeastern Pennsylvania.

Prosecutors are seeking the death penalty.