[iFriSki]

I believe you should tell the killer (killerid), not the one who died.

playerid = the one who died
killerid = the one who killed someone

pawn Код:

#include <a_samp>

public OnPlayerDeath(playerid, killerid, reason)
{
    if(GetPlayerState(killerid) == 2)
    {
        if(!IsPlayerInAnyVehicle(killerid))
        {
            new name[MAX_PLAYER_NAME], string[44];
            GetPlayerName(killerid, name, sizeof(name));
            format(string, sizeof(string), "%s(%d) do NOT driveby",name ,killerid);
            SendClientMessageToAll(0xFFC4E0AA, string);
            return 1;
        }
    }
    return 1;
}