Oakland police reported Sunday afternoon that a man was fatally shot about 10 a.m. Sunday in the 2400 block of 27th Avenue.
Officers responded to the area and found a man suffering from multiple gunshot wounds, police said. He died at the scene.
The shooting was still under investigation late Sunday and no arrests had been made, said Oakland police Sgt. Tony Johnson.
An Alameda County coroner's office spokesman did not release the victim's name Sunday, but police identified him as Aubrey Johnson of Oakland.
As a teen, Johnson played baseball for Castlemont High School in the Oakland Athletic League. He was considered one of the area's most promising prospects at the time. In April 1980, he was named the Oakland Tribune's "Prep of the Week."
Family members were not available for comment late Sunday.
Police don't know why Johnson was in that part of the city. He does not live nearby, police said.
The slaying brought the city's homicide count this year to 24.Last year at this time there were eight homicides.
Police don't believe Sunday's slaying has any link to Friday night's double homicide on 50th Avenue.
In that slaying, Gary Ruiz, a 20-year-old Oakland carpenter, and his friend Elizabeth Lopez-Bojorquez, 18, were shot dead not far from their homes in the Melrose district about 11 p.m.
It was the second homicide for the Ruiz family. The victim's older brother was killed in June 1993, according to a Ruiz family member.
This weekend's three slayings came as Oakland police Chief Wayne Tucker met with a group of 40 residents at Frick Middle School on Saturday to discuss the rising homicide rate.
"I think it was a very good discussion," said Rashidah Grinage, director of People United For a Better Oakland, which sponsored the meeting. "We find the chief very responsive."
Police and Crime Stoppers of Oakland are offering up to $10,000 for information leading to the arrest of the suspect or suspects in Johnson's slaying and $20,000 for the arrest of a suspect or suspects in Friday night's double homicide. Anyone with information should call police at 238-3821 or Crime Stoppers at 238-6946.
Staff writer Harry Harris contributed to this report.