Campfire: One of Us Is the Killer

It is similar to a "Mafia Party Game", with a different scenario: You are out camping with strangers. 

You have to survive in the woods together. But not everyone is what they seem. There is a Killer among you and, one by one, he will try to kill everyone and sabotage the camp. Are you a capable to find the killer, before everyone is dead or run out of resources? 

You all are in the camp, but you need food, water and fire to stay alive. It is a harsh weather, but working together you can strive. While in the camp, use the voice chat to coordinate the group. Every camping round, you all can vote to execute a suspected Killer or get back to gathering. Careful not to execute innocents, it will be one less for the killer take care of. When gathering resources, you are all by yourself… or arent you?