The 43-year-old woman found dead at Snow Elementary School on Foster Road Sunday afternoon was an apparent suicide, the Napa County Coroner's Office reported.
Napa police received reports of a person on fire at 2:47 p.m.. They found a woman dead on a playground.
The woman, who had a recent history of depression, was an apparent suicide, Sheriff's Capt. Steven Blower said Monday.
"Evidence at the scene indicates that she doused herself with a flammable substance and lit herself on fire," Blower said.
The case is being investigated by Napa Police.