(AP Photo/Matt Slocum)
(AP Photo/Matt Slocum)

The hunt continues in Pennsylvania's Poconos mountains for the man police say ambushed and killed a state trooper.

FOX News Radio's Tonya J. Powers reports:

State police are concentrating on the area around Canadensis, Pennsylvania. That's where Eric Freen grew up and, his parents still live.

(The Associated Press)
(The Associated Press)

Some roads are closed and people who live there haven't been able to go back to their homes because of police presence. A Red Cross shelter has even been opened for them. 

Authorities say Freen has a vendetta against law enforcement, and had been planning a confrontation for quite some time.

They also think he's hiding in homemade bunkers with supplies of food, water and fuel.

Tonya J. Powers, FOX News Radio.