GILROY, Calif. (KGO) -- A newly unsealed search warrant is revealing more details about the 19-year old who went on a shooting rampage at the "Gilroy Garlic Festival."
Our media partner "The Mercury News" reports police discovered a second semi-automatic assault rifle in the shooter's home.
The also found three magazines holding about 30 rounds each.
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A search of the 19-year old's car turned up a passport and a "Gilroy Garlic Festival" pamphlet.
Officers also found a clown mask and an open bottle of Jack Daniels.
A motive for the attack that killed three people and wounded 16 others is still unclear.
Unsealed search warrant reveals details on Gilroy Garlic Festival suspect
GILROY GARLIC FESTIVAL SHOOTING