Overview

• Colden Kimber stepped between a stranger and a mother with two children at a San Francisco Muni stop on July 26 and was fatally stabbed in the neck.
• Sean Collins, 29, has been charged with murder and remains held without bail as he undergoes a court-ordered mental health evaluation ahead of his August 14 arraignment.
• Surveillance footage from the Muni stop and a nearby restaurant, along with testimony from two child witnesses, have helped authorities piece together the unprovoked attack.
• A GoFundMe set up by Kimber’s mother has raised more than $90,000 to help cover funeral and family expenses.
• Cycling groups and friends have organized a memorial ride on September 7 in Golden Gate Park to honor Kimber’s legacy and advocate for safer transit.