Hello~!
I took a pass, here's what I have so far for you:
The physical description is fine, but could benefit from some more fleshing out.
Elongated canines? By how much, and for what reason?
History, etc:
His Father should be Nepleslian, which is the base 'Human' in the setting at least at this juncture in history.
Could you be more specific about where the murders he committed took place, and how he managed to escape any blame for something like that? On a planet like Yamatai it would be extraordinarily difficult depending on the circumstances and where it happened. PANTHEON is rather invasive.
Again, how does he slip away without leave (AWOL)? I would like to see that expanded to be more clear.
Skills: Some things you mention should be more clear, since I do not think it's common to understand medical methods of torture, at least site where and when he learned that?
Inventory:
If he has his Type 29 Communicator, I have to wonder what stops the Star Army from tracing him to that? Is he using it? Good job on the rest!
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What is this character intended for, setting wise? There are only the above tweaks to be handled, but I am interested in knowing how he'll fit into the setting in the plot he's destined to. Would that be the Maras, or something else?
He's got the trappings of a serial killer, if I'm not mistaken? Lovely work so far.
This character is pending. Please make edits, and clarifications as noted above.