So was he just some random bloke?

Does it matter? Not everything needs to be explained. Benisoff and Weiss made a lot of mistakes this season, but that isn't one of them.

Apparently OP "kinda forgot" this screenshot is from the episode where THEY EXPLAIN THAT EXACT THING. No, they don't lay out every detail of his human life, but seriously, he was a random human they sacrificed. Not much backstory needed

They massacred the last season. This doesnt even fit on my count list anymore.