Greg Jennings, 50, pleaded not guilty to murder when he appeared before San Diego Superior Court Judge Maureen Hallahan.
Deputy District Attorney Michael Reilly said the 37-year-old victim is not being identified following the Monday slaying as his family has not yet been notified.
He said he did not know if Jennings knew the victim, but they had been arguing around 6:20 p.m. near a bus stop on Midway Drive near West Point Loma Boulevard. Reilly said he didn’t know what the argument was about.
Reilly told the judge the sledgehammer was small, weighing 64 ounces, and Jennings “struck him multiple times.” When the victim collapsed, Jennings straddled the man and struck him again, “resulting in his death.”
Jennings appeared in blue jail clothing with his hair tied in a bun. He agreed to waive his right to having a speedy preliminary hearing and the judge set it for Feb. 22.