Same thing happened to a guy that hit my brother. My brother was a manager at a Jewel food store on the night shift. One night, a guy was seen coming in and out of the store. They watched him load up his coat with steaks, and walk out to his car. Then he would waltz back in, and steal more. So my brother and several other male employees followed him out. When confronted, the guy pulled out a broom handle, swung and hit my brother. The other guys jumped on him, and he "fell" (several times!) As they carried him back into the store, the guy was still trying to get away. The automatic door swung open, and they threw his head into the metal door jam. He stopped fighting back at that point!
Another night a guy was stealing, and he took a woman hostage. As he came out of the store, holding a knife to her throat, a sniper on the roof of the store scattered his head all over the parking lot.