A 26-year-old man suffered life-threatening injuries after he was stabbed in the torso and arm Sunday evening at 21st and Folsom streets. The incident happened at 7:33 p.m. Sunday, according to police.
Authorities said that four suspects, all men in their 20s and 30s, got into a fight with the victim. One of the suspects then stabbed the victim and the four suspects fled the scene on foot.