His family says he was watching fireworks with his sister at a birthday party.
RELATED: 'Perfect child': Family of 6-year-old boy shot, killed watching SF fireworks asks for justice
On Tuesday, Jace's sister and friends led a caravan across the Bay Bridge to bring attention to the unsolved murder and to call for an end to gun violence.
"We're just protesting for my brother," said Markayla Colbert. "Trying to spread awareness and trying to get justice for Jace."
RELATED: 1 dead, 1 wounded after shooting on Hwy 101 in San Francisco
Billboards have been set up in San Francisco in Jace's honor.
Police believe that Jace was not the intended target in the shooting.