Suburban Dallas gunman licensed in law enforcement

McKINNEY, Texas – A security guard who once was certified to work in state law enforcement killed himself during a shootout with suburban Dallas police after luring officers outside by setting his pickup truck on fire, officials said Wednesday.
The Collin County Medical Examiners Office said Patrick Gray Sharp, 29, died of a self-inflicted gunshot wound to the head.
The shootout Tuesday morning came after Sharp towed a trailer loaded with explosives into the parking lot of the McKinney police station and set his pickup truck on fire, police said. Sharp retreated to a field across a road and fired more than 100 rounds at police headquarters, McKinney police Chief Bob Kowalski said.
Nobody else was injured in the attack in the suburb of roughly 127,000 people about 30 miles north of Dallas, and Kowalski says police dont have a motive. A McKinney police spokesman didnt immediately return a call Wednesday.
State records show Sharp was licensed by the Texas Department of Public Safety to work as a security guard in 2004. Three years earlier, he was licensed as a jailer by the Texas Commission on Law Enforcement Officer Standards and Education.
Both licenses have since expired.
Sharp worked as a security guard for building wire manufacturer Encore Wire Corp. in McKinney, said Cheryl Cox, the mother of Sharps roommate. A spokesman for Encore Wire told The Dallas Morning News that Sharp resigned a few days ago. An Encore official wasnt immediately available to comment to The Associated Press on Wednesday.
Cox said she thought of Sharp as a son and was "shocked" by the attack. She said she had no idea why he would target police.
Cox and her husband, Bobby Cox, live in a home just behind the house Sharp shared with Eric McClellan in Anna, about 15 miles ...