Hundreds of Grateful Dead fans gathered in San Francisco’s Haight-Ashbury district this weekend to celebrate Bob Weir’s life.

Thanks to the bootlegging skills of the Grateful Dead's audience, the last performance by every single departed member has been preserved.

LOS ANGELES — Bob Weir, the guitarist and singer who as an essential member of the Grateful Dead helped found the sound of the San Francisco counterculture of the 1960s and kept it alive through decades of endless tours and marathon jams, has died. He was 78.

Rocker Bob Weir died on Jan. 10 at 78 following underlying lung issues after beating cancer Bob Weir, guitarist and founding member of the Grateful Dead, died on Jan. 10 at the age of 78 Fellow Deadheads and friends of Weir honor the late musician following his death "If you say it's not the end,

A lifelong Deadhead reflects on four decades of shows, tapes, and change — and explains why Dead & Company feels like the music he needs now.

Grateful Dead guitarist and co-founder Bob Weir has died after a battle with cancer. Warren Haynes, guitarist for the Allman Brothers and the frontman for Gov't Mule, joins CBS News to discuss what it was like to work with Weir.