Gmod murder mini-game (beta)

This is a fully functional Gmod murder mini-game for Minecraft.  Gmod murder is a mini-game played in Garry's Mod and when I saw it I knew it would be perfect to recreate it in minecraft.  It is completely automated with redstone and command blocks.  The game can be played with 3-5 players.  The signs in the lobby explain the rules of the game in detail.  The basics are there is one murderer, who is given a powerful sword, and the rest of the players are survivors. One of the survivors is given a powerful bow.  The murderers goal is to kill all of the survivors without being discovered.  The survivors goal is to find out who is the murderer and kill him.

Rules:
1. set difficulty to hard
2. turn chat off (you won't need to do this when 1.8 is released)
3. set brightness to bright

Upcoming features: Titles in 1.8 along with worldboarder.  And a new map.

I can't take all of the credit, I did build all of the redstone but my friend built and designed the map.