Seven months after Texas saw one of the nation’s deadliest prison escapes, investigations into what went wrong have come back to one factor: The state’s lockups are dangerously shortstaffed.On May 12, convicted murderer Gonzalo Lopez was on a prison transport bus in Central Texas when he managed to escape his handcuffs, cut into the driver’s compartment and stab the driver with a makeshift weapon. He stole the officer’s gun, wrestled him outside and hijacked the bus, driving about a mile before crashing and fleeing on foot.Lopez evaded capture for weeks, until law enforcement responding to a welfare check at an ...