The incident occurred last night around 11pm.

Police said the man died this morning after an hours-long standoff.

School district officials now believe the students consumed edible marijuana.

The suspect and victim were both hospitalized after the incident.

The victim was delivering a garbage compactor when an accident occurred.

In separate incidents, men in the Mission and Sunnydale districts were wounded by gunfire.

A man was robbed at gunpoint while standing on a Market Street Muni platform, said police.

Police, firefighters and the bomb squad were on the scene for an hour.

In one incident, a 92-year-old woman was shoved to the ground and robbed.

The victim suffered life-threatening injuries.

The incident is the city's sixth homicide of the year.

Multiple violent street crimes were reported in recent weeks.

The incidents occurred about an hour apart in the Excelsior and Sunset districts.