The Mad Murderer [TMM] was a short-lived gamemode which lasted for one update during Reason 2 Die debug. It was essentially Player Vs Player, except you would have to kill the murderer.
Because it wasn't developed past the first phases, it would often lead to effectively Free For All until the murderer was killed. When that occurred, everybody still alive won.
- This gamemode was cancelled due to the overwhelming negative response by the majority of the community. (78% disapproval rate.)
- If an admin voted the next map to be DeadPlaza Free For All, this gamemode would be played.
- There is a video on it here.