Police are looking for Johnathan Walker, 20, who they believe shot and killed 19-year-old Robert O'Bryant Tuesday morning.
At about 1:30 a.m. on Tuesday, O'Bryant was shot to death inside a home on the 1600 block of Kirkwood Avenue in the Bayview District. Another man was shot and taken to San Francisco General Hospital with life-threatening injuries.
Police have identified Walker, also known as John-John, as the shooter. Walker is currently on parole for robbery, police said.
On Wednesday, police arrested Almon J. Johnson for allegedly killing Vanessa Herrea in Sacramento and driving her body to the Lower Haight where he set the car on fire.