SAN FRANCISCO -- A 12-year-old boy was arrested for allegedly stabbing a 15-year-old San Francisco high school student on a MUNI bus on Monday, said police.
The victim is recovering from the life-threatening injury on Wednesday, police said.
The unprovoked stabbing happened Monday afternoon on a bus near Stockton and Sutter streets, close to San Francisco's Union Square, according to police.
The 12-year-old boy was arrested and booked on suspicion of attempted homicide, and for an unrelated stabbing and robbery incident from last week.
The video in the player above is from a previous report.
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