MILFORD — A survivalist charged in the fatal ambush of a state police barracks told authorities on the night of his capture, “I did this. No one else did,” according to a videotaped interview played for jurors at his capital murder trial on Tuesday.

Prosecutors showed the video that police recorded Oct. 30, 2014, hours after Eric Frein was captured, ending 48 days on the run in the Pocono Mountains.

“All I can say is I’m sorry,” Frein, sobbing at times, told police investigators in an interview room at the Blooming Grove barracks in northeastern Pennsylvania.

Prosecutors say Frein hid in the woods across the street from the barracks and opened fire during a late-night shift change, killing Cpl. Bryon Dickson II and critically wounding Trooper Alex Douglass.

Frein, who’s 33, could face a death sentence if he’s convicted. He has pleaded not guilty.

The video showed two state police interrogators repeatedly pressing Frein for answers on why he targeted two troopers he said he didn’t know. He was reluctant to answer, finally agreeing with the investigators’ statements that he did it to “wake people up” and that he wanted to make a change in government, according to the video.

“There’s nobody to vote for,” he said.

Earlier, the college dropout seemed to suggest he had been despondent over his life.

“Thirty-one. Still living with my parents. No prospect for any sort of future ... drive a truck or something,” he told them.

Frein said he planned the ambush using Google Earth, choosing the Blooming Grove barracks because the heavily forested area provided ample cover.

He said he took two Adderall pills, a stimulant used to treat attention deficit hyperactivity disorder, on the day of the shooting, then got into position in the woods about an hour before.