player = game.Players.fred7822

game.Players.PlayerAdded:connect(function(player) --this gets the player that connected
    player.Chatted:connect(function(message) --this function executes when the player type into chat
    --commands are here
    if string.sub(message,1,string.len("kill/"))=="kill/" then --check the message if it starts with command "kill/"
        if string.sub(message,string.len("kill/"))==player.Name then --kill the player with the name
            player.Character.Head:remove()
            end
    end)
end)