DARKRP: How do i get a part of a message?

[RazMouze]

Hey guys!
I was trying to make a chat command that would basicly just kill another player. So you could do like "!Rslay John328" and he would die.

So i was just wondering if you could do like

ply = (Player said in message)
ply:KillSilent()

(Not signed by Raz xD)

[Netheous]

string.explode, string.find

[manolis]

DarkRP.defineChatCommand("rslay", function(args)
    // Validate args[1] here
    local ply = DarkRP.findPlayer(args[1])
    // Validate player here


    ...
end)