Police in San Francisco had just begun unraveling the story behind an unprovoked stabbing on a Muni vehicle early Saturday morning when they received an unexpected break.
The suspect returned to the scene of the crime, where he was quickly identified by witnesses and taken into custody by police.
The suspect, a 21-year old Hispanic man, returned to the 3400 block of Mission Street some time after the 12:15 a.m. Saturday stabbing, according to the San Francisco Examiner. The suspect was harassing a 29-year old man, for no apparent reason, according to police.
The victim exited the bus to defuse the situation but the suspect continued after him and attacked him on the street, according to police. The victim received three stab wounds.
Officers were taking statements from witnesses and applying first aid to the victim when the suspect returned and was arrested.
Cops praised witnesses for coming forward -- and the perpetrator for hanging around.