A man wanted for murder in Cobb County shot himself with a rifle after being pulled over in downtown Zebulon Saturday afternoon. The man, identified as 43-year-old Randall Keith Fisher, subsequently died at a Griffin hospital from the self-inflicted wound.Fisher was the prime suspect in the March 20 murder of John Harvey Bedford III at a Cobb County home the two shared. Bedford was shot to death in the home at about 6:30 p.m. yesterday, according to the Pike County Journal Reporter. Cobb authorities issued a lookout for Bedford’s vehicle, a gold or beige 2008 Honda Civic, according to officer Nathan McCreary of the Cobb sheriff’s department.Pike sheriff Jimmy Thomas said his department received the lookout because Fisher had ties to the area. Officers spotted the vehicle near the farmer’s market site off Highway 19 in downtown Zebulon at 5:24 p.m. and initiated a routine traffic stop. As they approached the vehicle, Fisher slumped over in his seat. Upon opening the vehicle, they discovered he had shot himself with a rifle.Sheriff Thomas said the lookout on Fisher had labeled him as being armed and dangerous so abundant caution was used. “We are very thankful our people were not harmed,” the sheriff said.Fisher and Bedford lived together at 2349 Post Oak Tritt Road in Marietta. Family members who had not heard from Bedford called authorities to check on him, resulting in the discovery of his body in the home. Fisher was identified as a suspect, murder warrants were taken and the lookout on Beford’s missing vehicle was issued.It is unclear whether the weapon Fisher used to shoot himself was the murder weapon.The investigation is ongoing.