Valentina’s mother Soledad Peralta and her father were joined by civil rights activist Reverend Al Sharpton at the funeral in Gardena, near Los Angeles.
Sharpton called said the Los Angeles Police Department (LAPD) should be held accountable for the killing.
“We keep seeing LAPD get it wrong. And here we are again, how long will it take for you to get it right?” said Sharpton.
“The question is if two days before Christmas, would you have gone into a shopping center in Bel Air or Beverly Hills and started shooting like that and not consider whether high-end shoppers might be hurt? The fact that the value of a life was not considered is disturbing,” he added.
LAPD officers dispatched to the store were responding to several radio calls of an assault and possible shooting in progress, police said.
The officer who fired the shots has been placed on administrative while an investigation is under way, an LAPD spokesman said. No firearm was recovered from the suspect, police said.