A photo of Joanna Ramos, with a note, is left...

A photo of Joanna Ramos, with a note, is left at a memorial outside Willard Elementary school in Long Beach, Calif. (Feb. 27, 2012) Credit: AP

The Los Angeles County coroner's office has ruled that the death of a 10-year-old Southern California schoolgirl after a fight was a homicide.

Coroner's Lt. Fred Corral says Monday that blunt force trauma killed Joanna Ramos, who collapsed at home after a fight with another girl on Friday in Long Beach.

The girl's older sister says Joanna died after surgery for a blood clot on the brain.

State GOP convention update ... Student wins plagiarism lawusit ... Out East: Long Island Aquarium Credit: Newsday

Motel pipe burst ... State GOP convention update ... Agreement to end nurses strike ... Picture This: That time LI was buried in snow

State GOP convention update ... Student wins plagiarism lawusit ... Out East: Long Island Aquarium Credit: Newsday

Motel pipe burst ... State GOP convention update ... Agreement to end nurses strike ... Picture This: That time LI was buried in snow

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