Robert Galvan, who is on death row for murder, speaks to members of the media at the Adjustment Center yard during a media tour of California's Death Row at San Quentin State Prison in San Quentin, California December 29, 2015. America's most populous state, which has not carried out an execution in a decade, begins 2016 at a pivotal juncture, as legal developments hasten the march toward resuming executions, while opponents seek to end the death penalty at the ballot box. (Photo by Stephen Lam/Reuters)





A guard opens the handcuffs of an inmate after he was escorted back into his cell in the East Block during a media tour of California's Death Row at San Quentin State Prison in San Quentin, California December 29, 2015. (Photo by Stephen Lam/Reuters)





Mark Navarette, who is on death row for murder, speaks to members of the media from his cell on the East Block during a media tour of California's Death Row at San Quentin State Prison in San Quentin, California December 29, 2015. (Photo by Stephen Lam/Reuters)





Members of the media in protective vests and face shields take photographs of inmates at the recreation yard inside the Adjustment Center during a media tour of California's Death Row at San Quentin State Prison in San Quentin, California December 29, 2015. (Photo by Stephen Lam/Reuters)





Lieutenant Sam Robinson, a public information officer at San Quentin State Prison, knocks on the door to the East Block for condemned prisoners during a media tour of California's Death Row in San Quentin, California December 29, 2015. (Photo by Stephen Lam/Reuters)





A painting of 'Raising the Flag on Iwo Jima' is seen at the end of a flight of stairs that leads to the Condemned Row at San Quentin State Prison during a media tour of California's Death Row in San Quentin, California December 29, 2015. (Photo by Stephen Lam/Reuters)





A sign is seen on the wall leading to the entrance of the Condemned Row at San Quentin State Prison during a media tour of California's Death Row in San Quentin, California December 29, 2015. (Photo by Stephen Lam/Reuters)





Condemned inmate Sean Vines is seen inside his cell on the East Block during a media tour of California's Death Row at San Quentin State Prison in San Quentin, California December 29, 2015. (Photo by Stephen Lam/Reuters)





An armed guard patrols the East Block for condemned prisoners during a media tour of California's Death Row at San Quentin State Prison in San Quentin, California December 29, 2015. (Photo by Stephen Lam/Reuters)





A guard tower is seen during a media tour of California's Death Row at San Quentin State Prison in San Quentin, California December 29, 2015. (Photo by Stephen Lam/Reuters)





Members of the media put on protective vests prior to entering a row of cells at the Adjustment Center during a media tour of California's Death Row at San Quentin State Prison in San Quentin, California December 29, 2015. (Photo by Stephen Lam/Reuters)





Two guards walk in a yard during a media tour of San Quentin State Prison in San Quentin, California December 29, 2015. (Photo by Stephen Lam/Reuters)





A guard escorts a hearing-impaired inmate down a corridor in the East Block during a media tour of California's Death Row at San Quentin State Prison in San Quentin, California December 29, 2015. (Photo by Stephen Lam/Reuters)





Members of the media walk down the corridor inside the Adjustment Center during a media tour of California's Death Row at San Quentin State Prison in San Quentin, California December 29, 2015. (Photo by Stephen Lam/Reuters)





A guard looks out of a guard tower during a media tour of California's Death Row at San Quentin State Prison in San Quentin, California December 29, 2015. (Photo by Stephen Lam/Reuters)





An empty activity therapy room is seen at the Psychiatric Inpatient Program at San Quentin State Prison in San Quentin, California December 29, 2015. (Photo by Stephen Lam/Reuters)





An inmate stands against a fence at the Adjustment Center yard during a media tour of California's death row at San Quentin State Prison in San Quentin, California December 29, 2015. (Photo by Stephen Lam/Reuters)





Charles Edwards Case, who is on death row for murder, types a letter to his attorney with a typewriter inside his cell on the East Block for condemned prisoners during a media tour of California's Death Row at San Quentin State Prison in San Quentin, California December 29, 2015. (Photo by Stephen Lam/Reuters)





A sign is seen above the gate to the Condemned Row at San Quentin State Prison during a media tour of California's Death Row in San Quentin, California December 29, 2015. (Photo by Stephen Lam/Reuters)





Robert Galvan, who is on death row for murder, exercises at the Adjustment Center yard during a media tour of California's Death Row at San Quentin State Prison in San Quentin, California December 29, 2015. (Photo by Stephen Lam/Reuters)





Exercise equipment is seen in a yard outside the East Block for condemned prisoners during a media tour of California's Death Row at San Quentin State Prison in San Quentin, California December 29, 2015. (Photo by Stephen Lam/Reuters)





A guard displays his San Quentin State Prison belt buckle during a media tour of California's Death Row at San Quentin State Prison in San Quentin, California December 29, 2015. (Photo by Stephen Lam/Reuters)





A death row inmate uses a phone from his cell in the East Block during a media tour of California's Death Row at San Quentin State Prison in San Quentin, California December 29, 2015. (Photo by Stephen Lam/Reuters)





A guard escorts a condemned inmate down a corridor in the East Block during a media tour of California's Death Row at San Quentin State Prison in San Quentin, California December 29, 2015. (Photo by Stephen Lam/Reuters)





A Mickey Mouse clock is seen on a wall on death row during a media tour at San Quentin State Prison in San Quentin, California December 29, 2015. (Photo by Stephen Lam/Reuters)





A photograph of Richard Allen Davis, who is on death row for murder, is seen posted on a wall outside his cell during a media tour of California's Death Row at San Quentin Stat, Prison in San Quentin, California December 29, 2015. (Photo by Stephen Lam/Reuters)





An armed guard stands on a gun rail above the yard at the Adjustment Center during a media tour of California's Death Row at San Quentin State Prison in San Quentin, California December 29, 2015. (Photo by Stephen Lam/Reuters)





A guard closes a gate to death row during a media tour at San Quentin State Prison in San Quentin, California, December 29, 2015. (Photo by Stephen Lam/Reuters)





An armed guard patrols on the East Block for condemned prisoners during a media tour of California's Death Row at San Quentin State Prison in San Quentin, California December 29, 2015. (Photo by Stephen Lam/Reuters)





A radio is seen hanging in a cell at the Adjustment Center during a media tour of California's Death Row at San Quentin State Prison in San Quentin, California December 29, 2015. (Photo by Stephen Lam/Reuters)





A guard stands behind bars at the Adjustment Center during a media tour of California's Death Row at San Quentin State Prison in San Quentin, California December 29, 2015. (Photo by Stephen Lam/Reuters)





Protective vests are seen on a wall inside the Adjustment Center during a media tour of California's Death Row at San Quentin State Prison in San Quentin, California December 29, 2015. (Photo by Stephen Lam/Reuters)





Douglas Clark, 67, who has been on death row for 33 years for murder, gestures from a cell at the Adjustment Center during a media tour of California's Death Row at San Quentin State Prison in San Quentin, California, December 29, 2015. (Photo by Stephen Lam/Reuters)





Two wheelchairs are lined against a wall in the East Block for condemned inmates during a media tour of California's Death Row at San Quentin State Prison in San Quentin, California December 29, 2015. (Photo by Stephen Lam/Reuters)





A general view of San Quentin State Prison during a media tour of California's Death Row in San Quentin, California December 29, 2015. (Photo by Stephen Lam/Reuters)





Scott Peterson (C), who is on death row for murder of his wife and unborn son, stands with other inmates in a yard during a media tour of California's Death Row at San Quentin State Prison in San Quentin, California December 29, 2015. (Photo by Stephen Lam/Reuters)





Two guards walk toward the entrance of San Quentin State Prison during a media tour of California's Death Row in San Quentin, California, December 29, 2015. (Photo by Stephen Lam/Reuters)