 As a teenager, he was a street reporter broadcasting observations of civil rights, anti-Vietnam war protests, and youth issues for San Francisco radio stations KMPX, KQED and KCBS.KMPX was the nation's first progressive rock station, started by Top 40 disc jockey Tom Donahue, and practiced advocacy journalism.One of Webb's most notable on-air experiences was reporting the murders of San Francisco City Supervisor Harvey Milk and Mayor George Moscone by ex-City Supervisor Dan White.