NOTE: The following is merely a concept, not an actually available feature (for the time being).

/execute @a[score_DEATHS_min=1] ~ ~ ~ summon Item ~ ~ ~ {
	Item:{
		id:minecraft:skull,
		Damage:3,
		tag:{
			SkullOwner:"{
				selector:\"@a[c=1]\"
			}"
		}
	}
}