OnPlayerKillEx
From the Scripting Manual
procedure OnPlayerKillEx(Killer, Victim: byte; Weapon: byte); Parameter Info: Killer (Byte): Player ID of the player who killed the Victim Victim (Byte): Player ID of the Victim. Weapon (Byte): Number of the weapon used to kill the Victim. Description: This procedure will be called every time a player dies. Difference from OnPlayerKill is the Weapon variable(string>byte).