Elektra Yepez, 11, killed and several people injured when struck by vehicle on sidewalk by food truck on S. Marietta Street in Boyle Heights, California

Witnesses said the adult women are sisters and were having dinner with their children when a 21-year-old driver of a Ford Mustang lost control, went airborne and crashed into two parked vehicles in front of the taco stand.

Speed was a factor in the incident, Flores added, and the department's street racing task force was on scene investigating the circumstances.

Hundreds of people attended the event and said it's all about helping the family during this tragic time. By the end of the night, nearly $10,000 were raised for the family.