I understand.
I'm a woman but I go by the name Reaper on halo. Hypothetically speaking, writing that on my arm before I murdered 32 people and then blew my brains out wouldn't even be on my peripheral vision.
Maybe he was the man in a game.
In real life, he was, well, not the man...
But my primary alter ego, used whereever I can use a handle is Knitting a Conundrum, or at least KAC... It’s as much a part of me right now as my married name, and as far as I can tell there isn’t much real difference, except KAC doesn’t get as mad as often as my real self! I have used other personas, and some were just me, but some were different enough that I found myself talking about them in the third person.
I suspect he was role playing that he was his gamer persona...