If you believe what Z's girlfriend says now, and if you believe what Z's soon-to-be ex-wife says now, and if you believe what the jury decided, then it would be unnecessary and prejudicial for Z to take an anger management course. The media would like nothing better as an admission of the guilt which has so far been unproven multiple times.
Please note that I said *if* there's any truth to any of the accusations.I haven't the first clue if there is or not but my gut tells me that there *might* be.