Priest: Mourners in "disbelief" at Pennsylvania trooper's death

SCRANTON, Pa. -- A priest says that mourners have gathered "in sorrow, disbelief and anger" at the funeral for a Pennsylvania state trooper killed in an ambush.

But the Rev. Thomas Muldowney says people should focus on the positive impact that 38-year-old Cpl. Bryon Dickson made during his life.

Family members and hundreds of law enforcement officers are attending Thursday's funeral Mass at St. Peter's Cathedral in Scranton.

Earlier, troopers serving as pall bearers carried Dickson's flag-draped casket into the church as bagpipers played. Law enforcement officers from across the country lined the street and stood at attention.

Dickson was gunned down late Friday outside a rural barracks in the Pocono Mountains.

Another trooper was wounded in the ambush that touched off a massive manhunt for 31-year-old Eric Frein, whom authorities are now calling a federal fugitive.

Sources tell CBS News that the federal warrant issued for Frein does not necessarily mean that he has crossed state lines in trying to escape. A federal official said investigators do not know at this point if he has crossed over state boundaries. It's possible, given the close proximity to New York and New Jersey. The manhunt for Frein is now in its sixth day.

The federal warrant was issued for unlawful flight to avoid prosecution, or UFAP. It allows the Feds to arrest Frein no matter where he is, but once he is arrested, any state charges will trump the federal warrant. The federal official said the FBI is assisting the Pennsylvania State Police in the investigation, including agents from the FBI's evidence recovery unit, interviewers, and aerial surveillance assets.

Police said Frein has a deep-seated hatred of law enforcement, and in Blooming Grove, Pa., residents aren't taking any chances, reports CBS News correspondent Don Dahler. Schools in the area have closed for another day as a precaution.