Lincoln Mitchell connects the dots of the last 41 years of San Francisco

Lincoln Mitchell, author of "San Francisco Year Zero," makes the case that the San Francisco of today begins in 1978. The assassination of George Moscone and Harvey Milk, the massacre of Peoples Temple members in Jonestown, the explosion of the city's punk rock scene, and a breakthrough season for the San Francisco Giants, he says, all led inevitably to 2019 San Francisco.