Don't worry, John will probably be reborn in another world.
It is sad for me to have to actually type this out, but most people are unfamiliar with Truck-kun and its omnipotent killing powers. Truck-kun doesn't care if you look both ways first. When it's your time to meet your maker, Truck-kun will make sure you get there fast. Hands down, the most effective killing machine the world has ever known.