Maybe you missed the chain of events.
1) AV claims to have "investigated" jazz and revealed his full role info, stipulating that the town would avenge this offense (or something like that).
2) Aladeen immediately kills jazz
3) Aladeen tells us a condition was met at the beginning of the round for Jazz to get killed. Obviously this condition was AV claiming that info in the thread. Why would this be a villager action?
This was a pro-mafia mechanic. So at best, AV is a bastard sheriff that is going to keep &^@#ing us. At worst, he's mafia causing absolute chaos.