Chat Kill

new bool:ChatKill[MAX_PLAYERS];

OnPlayerConnect
ChatKill[playerid] = false;

Sua Stock
stock SendDeathMessageToAll(killerid,deadid,reason)
{
    for(new i = 0; i < MAX_PLAYERS; ++i)
    {
        if(IsPlayerConnected(i) && ChatKill[i])
            SendDeathMessageForPlayer(i,killerid,deadid,reason);
    }
}