Prop. 57, approved by voters in 2016, promised to reduce the state's overcrowded prisons by expanding parole eligibility for nonviolent criminals, and by encouraging inmates to take part in rehabilitation, therapy, and vocational programs. The cases include those of Alfredo "Freddy" Casillas, who took part in the murder of a rival gang member in Burbank, and Luis Steven Flores, who went to prison for assault with a deadly weapon with a semi-automatic firearm, and served time for battery on a peace officer, as well as battery on another inmate. They, along with other prisoners with violent histories, became eligible for...