In a photo provided by the San Bernardino County Sheriff’s Department, the weapons police say were used by suspects in last week’s mass killings in San Bernardino are displayed during Gov. Jerry Brown’s news conference held outside the site, Dec. 3, 2015. The semi-automatic rifles, variants of the popular AR-15, were reportedly purchased legally despite the state’s strict gun laws. SAN BERNARDINO COUNTY SHERIFF'S DEPARTMENT San Bernardino County Sheriff's Department