San Francisco UPS shooting leaves 4 dead, including gunman

A UPS employee opened fire at a San Francisco package delivery facility on Wednesday, killing three employees and then himself as officers closed in, police said.San Francisco assistant police chief Toney Chaplin said a news conference that two other employees were wounded in the shooting that prompted a massive police response in downtown San Francisco.Police have not determined a motive. Chaplin said that the shooter was armed with an assault pistol and put the weapon to his head and pulled th