A teenager who killed three people and injured several others at a California food festival died from a self-inflicted gunshot wound, US authorities have confirmed.
Santino William Legan, 19, opened fire with an assault rifle at Gilroy Garlic Festival in July.
Authorities initially said he had been killed by police, but a coroner’s report has ruled that he shot himself in the mouth after being injured.
Investigators say they have yet to determine a motive for the attack.
According to Gilroy Police Chief Scot Smithee, three police officers ran towards Legan after he began opening fire with an “AK-47-type” assault rifle he had purchased legally in neighboring Nevada.
He was then shot “multiple times” by the officers, falling to his knees, and finally to the ground where “he was able to get a round off”.
Authorities have identified the three victims killed in the attack as six-year-old Stephen Romero, 13-year-old Keyla Allison Salazar and Trevor Deon Irby, 25. Sixteen others were also wounded.
The incident is the 246th mass shooting in the US this year, according to US tracking website Gun Violence Archive.