Fabian Zaragoza has been charged as an adult with murder for the shooting that killed 3-month-old Izack Jesus Jimenez Garcia and wounded his parents, Ivonne Garcia Lopez and Oscar Jimenez, of Redwood City.
Zaragoza and another person are believed to have targeted the family after mistaking them for Sureno gang members who had assaulted Zaragoza in Redwood City on May 31.
In addition to murder, Zaragoza has been charged with two counts of attempted murder with the infliction of great bodily injury, a special circumstance of lying in wait and use of a firearm in the commission of the crimes.
Zaragoza, who is being held without bail, faces life in prison without the possibility of parole if convicted.
He is expected to enter a plea at 1:30 p.m. in the Hall of Justice in Redwood City.