Arkansas police close probe in Democratic killing

LITTLE ROCK, Ark. — City and state police have closed their investigations into last summer's shooting of Arkansas' Democratic Party chairman without offering an explanation of why the attack occurred.

Bill Gwatney died Aug. 13 after being shot three times by a man who had been fired from his job at a Target store that morning. Timothy Dale Johnson was chased into Grant County, where he was shot and killed after threatening officers.

A city police report said Johnson was on an anti-depressant and that the drug may have played a part in his "irrational and violent behavior."

Autopsy results said Gwatney died from a shot to the head. Johnson was shot six times.