China Grove, NC – An unidentified worker was killed today after being crushed by a wood chipper. Officials said that employees from Big Al and Son’s Tree Service were riding on the back of a tree service truck. The employees got out of the truck then back in, but one was not able to get back on before the driver started moving the truck. The worker fell off the truck and was crushed by the wood chipper. Emergency crews performed CPR on the victim for more then 30 minutes but they were unsuccessful. The worker was pronounced dead at the scene.