MILFORD, Pa. (AP) — Onlookers shouted "Are you sorry?" and "Why did you do it?" as state troopers led a suspect in a fatal police barracks ambush from his first court appearance following a seven-week manhunt.

Pike County District Attorney Raymond Tonkin says Eric Frein's capture and preliminary arraignment Friday brought some comfort to the region after an "unimaginable loss of unspeakable proportions."

State police say troopers have been interviewing the 31-year-old survivalist but won't disclose details of what he's said or a possible motive.

Frein is charged with killing Cpl. Bryon Dickson and critically wounding Trooper Alex Douglass on Sept. 12.

Authorities captured Frein on Thursday near an abandoned airplane hangar, ending a 48-day search.

State Police Lt. Col. George Bivens says the search has cost about $10 million.