MILFORD — A Pennsylvania prosecutor is formally notifying the court he's seeking the death penalty against a man accused of killing one state trooper and wounding another in an ambush attack.

Pike County District Attorney Ray Tonkin filed a document Tuesday listing aggravating circumstances that could send Eric Frein to the state's death row.

Frein's formal arraignment is set for Thursday at the courthouse in Milford, but Tonkin says he expects Frein to participate by video from the Pike County Correctional Facility.

Frein defense lawyer Michael Weinstein is declining comment on the death penalty filing and says his client intends to plead not guilty at the arraignment.

Frein is charged with first-degree murder and related offenses for an ambush in September that killed Cpl. Bryon Dickson and severely injured Trooper Alex Douglass.

HARRISBURG — Leaders of the Republican-controlled Pennsylvania Senate say they're not returning the paperwork for more than two dozen nominations to state boards and commissions that Democratic Gov. Tom Wolf wants to halt.The Senate Rules Committee approved 13 of the nominations Tuesday for consideration by the full Senate. Former Gov. Tom Corbett filed the nominations before his tenure ended and Wolf has criticized the process as lacking transparency.A Senate GOP spokesman says the nominees will be judged on their qualifications.The nominees who were advanced include the director of Corbett's southwest Pennsylvania office, Mary Ann Eisenreich, to the State Board of Education, former Lt. Gov. Jim Cawley to the Temple University trustees, and Corbett's revenue secretary, Dan Meuser, to the State System of Higher Education board.