I know he was knocked out.and the people I talked to said it was a very hard slam and looked like his shoulder hit first then his head hit twice like a whiplash motion

What did Rigney do after the match? It looked like he walked off the mat after he dropped his headgear. I didn't see anything unsportsmanlike. Maybe I missed something.
I saw a kid from Bexley earlier in the day throw his headgear clear across the mat in anger and he didn't get ejected.