Get the entity's owner?

I’m using this function for an explosive entity.


util.BlastDamage(inflictor, attacker, position, radius, damage)

How can I get the inflictor and attacker?

[editline]2nd February 2014[/editline]

I found something better.


	local explo = ents.Create("env_explosion")
	explo:SetOwner(self.Owner)
	explo:SetPos(self.Entity:GetPos())
	explo:SetKeyValue("iMagnitude", "200")
	explo:Spawn()
	explo:Activate()
	explo:Fire("Explode", "", 0)