...The state’s new lethal injection protocol will be subject to a lengthy public vetting process. And even if the pro-death penalty ballot measure prevails, implementing its changes would be costly and complicated. Still, should the state start killing again, Californians can expect to see a lot more prisoners who look like Clarence Ray Allen make their way to the gurney. As of now, the next 16 prisoners in line to die are mostly old men, all of whose sentences date back to the 1980s. Half are in their 60s, and two are more than 70; the oldest is 78.