[Cameltoe]

pawn Код:

command(kill, playerid, params[])
{
     new PID;
    if(PlayerInfo[playerid][gAdmin] < 5) return SendClientMessage(playerid, COLOR, "Unknown cmd.";
    if(sscanf(params, "u", PID)) return SendClientMessage(playerid, COLOR, "/kill  [ playerid / Name ]");
    return SetPlayerHealth(PID, 0);
}

Should do the trick ( Zcmd & SScanf )