Six months after a mass shooting in Stockton, California, left four people dead, including three children, and 13 others injured. Patrick Peterson, the father of one of the victims, described his family as "still suffering" and "still struggling". The shooting occurred during a child's birthday party and the San Joaquin County Sheriff’s Office believes multiple shooters were involved in the incident. No arrests have been made. The public is encouraged to assist in identifying the shooter.