A judge has sealed surveillance video showing portions of a fatal ambush outside a Pennsylvania State Police barracks.

A Pike County judge ruled in favor of prosecutors who wanted the video sealed. Media organizations including The Associated Press asked the judge to order release of a redacted version.

The video was shown at a preliminary hearing for survivalist Eric Frein (freen), who's charged with murder and other crimes in a Sept. 12 ambush that killed Cpl. Bryon Dickson and critically wounded a trooper.

District Attorney Ray Tonkin argued the video should be sealed to avoid traumatizing the victims and their families.

Media organizations based their argument on the Constitution's guarantee of public access to court proceedings.

Frein led police on a 48-day manhunt in the Pocono Mountains. He has pleaded not guilty.

Authorities are seeking the death penalty.