This past July, San Francisco mourned the death of Colden Kimber, who shielded kids, ages 8 and 14, from a mentally ill assailant at a Muni stop in Ingleside. Kimber was a 28-year-old, 6’4” avid cyclist, who was fatally stabbed in the neck with a six-inch blade by Sean Collins, a 29-year-old mentally ill man […]