Police received a report of a deceased man at an apartment complex in the 1100 block of Pacific Avenue at about 2:30 a.m., San Francisco police Officer Carlos Manfredi said.
According to witnesses, a 55-year-old male suspect and the victim were having a dispute prior to the shooting.
Police said the suspect is in custody and that no further suspects are believed to be involved in the homicide.
A motive for the killing remains under investigation.
