Prison Radio
  • 62 years old
  • 42 years of incarceration
  • Currently at San Quentin

Table of Contents

  1. Commentaries
  2. Contact Info
  3. Support Info
  4. Biography
  5. Gallery


Marvin “Shaka” Walker has published 4 commentaries. Latest commentaries:
Title Duration Date
David 03:59 03/08/22
The Guard That Broke My Fall 03:54 03/05/22
Response to Hospitalization After COVID-19 02:50 07/12/20
Prisoners Concerned with COVID-19 03:20 04/22/20

Contact Info

Marvin Walker, C20900

San Quentin State Prison

San Quentin, CA 94974

Incarcerated folks at San Quentin may be visited by contacting between Saturday 8 a.m. PST and Monday 8 a.m. PST to request permission for an in-person visit. Such visits will require proof of a negative COVID-19 test to be allowed. If requests are made outside of the aforementioned time window, then requests will be rolled over to the time window to be processed in the next week.

Support Info

Donate To Marvin’s Legal and Release Fund.

Marvin’s Brochure


Shaka Nantambu is the loving son of Emma Lou Walker and Marvin Pete Walker, and the oldest son of 10 siblings. His family includes many great and great-great nieces and nephews who would benefit from his presence in their lives. He has lived on in San Quentin for 41 years, since he was 19 years old. In the summer of 2021 he was hospitalized with COVID-19 after the CDCR moved several COVID positive inmates to San Quentin. Later that summer his conviction was overturned for the second time because of racist prosecutorial misconduct. He remains in prison, with no convictions at all because the Santa Clara County District Attorney says they plan to re-prosecute.