[Clavius]

Your OnPlayerDeath seems to be OK.
What is the Dead[playerid] = 1 for?

oh, and BTW,

pawn Код:

if(killerid == INVALID_PLAYER_ID)
    {
        SendDeathMessage(INVALID_PLAYER_ID,playerid,reason);
    }
     else
    {
        SendDeathMessage(killerid,playerid,reason);
    //  [...]
    }

has no point, really, think it over.