Aww, he just wants to feel again.
"I shoot/stab/slice people, because it's the only thing that makes me feel alive."
Drama confirmed.
Seems more deep than that, regarding the Icarus dream and his past I say that losing his arms wasn't his choice. He sort of looks like the person with a defining moment in his past, Noire style.
I hope so, because video games and cliches go together like gin and tonic.