His brother, Robby, a sophomore on the ND basketball team, had a history of delivering nutshots before someone, probably Brey, communicated that he better knock it off if he wanted to come to ND.
There's physical play and then there's no-class cheapshots thrown to hurt people, which is what we just saw and what we saw Robby doing in HS up until he got the message.
BTW, if you watch the other video of the game on the link, you will see Carmody run up and scream in the ref's face at the end of the game and then kick the ball to center court, at the opposing, winning team.
Jackasses are never worth it. The message needs to be sent to him to stop acting like one. ASAP.