The state's only death row for male inmates, the largest in the United States, is located at the prison.
It is bordered by San Francisco Bay to the south and west and by Interstate 580 to the north and east, near the northern terminus of the Richmond-San Rafael Bridge.
A converted shower bay in the East Block hosts religious services.
The death row at San Quentin is divided into three sections: the quiet "North-Segregation" or "North-Seg," built in 1934, for prisoners who "don't cause trouble"; the "East Block," a "crumbling, leaky maze of a place built in 1927"; and the "Adjustment Center" for the "worst of the worst." Most of the prison's death row inmates reside in the East Block. The adjustment center received solid doors, preventing "gunning-down" or attacking persons with bodily waste.
The fourth floor of the North Block was the prison's first death row facility, but additional death row space opened after executions resumed in the U. As of 2016 A dedicated psychiatric facility serves the prisoners.
They were painted by Alfredo Santos, one-time convicted heroin dealer and successful artist, during his 1953–1955 incarceration.
Lawrence Singleton, who raped a teenaged girl and cut off her forearms, spent a year on parole in a trailer on the grounds of San Quentin between 19 because towns in California would not accept him as a parolee.
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