July 31, 2014
LITTLE ROCK, Ark. (AP) - An Arkansas police chief says detectives are "at a dead end" in their investigation of a bombing that injured the chairman of the state's medical board.
West Memphis Police Chief Robert Paudert told The Associated Press on Friday that no witnesses have come forward with information about who entered Dr. Trent Pierce's driveway to plant the homemade bomb.
In a televised appeal for help Thursday, police asked neighbors to come forward if they saw anyone in front of Pierce's home between 7 p.m. Tuesday and 8 a.m. Wednesday - the time the bomb exploded.
Materials collected from the bomb site have been sent to a U.S. Bureau of Alcohol, Tobacco, Firearms, and Explosives laboratory in Atlanta.
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