© UnknownMark Richard Geisenheyner.
Webster, Pennsylvania - A gunman got out of his car during a late-night traffic stop and shot two police officers, one fatally, then spent hours in a standoff with police before he died trading shots with a SWAT team outside his home, state police said Monday.

Eli Franklin Myers was shot and killed by members of a tactical team trying to serve an arrest warrant for him Monday morning, about 10 hours after he killed East Washington police Officer John David Dryer on a highway shoulder, authorities said.

A second officer who was backing up Dryer was wounded in the gunbattle with Myers, authorities said. No other injuries were reported from the gunfire outside Myers' home in Webster, about 25 miles south of Pittsburgh.

Investigators believe Myers, 58, stepped out of his van and opened fire on Dryer and Officer Robert Caldwell after being pulled over shortly before midnight in Interstate 70 in Washington County, Trooper Joseph Christy said.

Caldwell's injury was non-life threatening, authorities said.

Emergency vehicles blocked off roads near Myers' home in Webster, a small town on the east bank of the Monongahela River. The local school district canceled classes while authorities tried to locate Myers.