Search For Trooper Killing Suspect Shifts Slightly

The delicate search for a survivalist charged with killing a trooper more than two weeks ago shifted slightly over the weekend in the dense woods that authorities fear may be booby-trapped. The search for 31-year-old Eric Frein entered its 16th day Sunday. Frein is described by authorities as a survivalist, marksman and war re-enactment enthusiast who planned the attack for years, extensively researching how to avoid police manhunts and experimenting with explosives.