We know a few things about him. He's been described as having seemed impatient with his work for Ms. Gusse's bank chain, Wealth Hatchery. That is most likely why he chose to embezzle funds from the institution rather than carefully saving up for the extensive electronics project he bought parts for — which I presume to be this very one.

[Edgeworth glances to the charger-seated headphones briefly.]

He's regarded in retrospect as having been manipulative, and people seem to regret having trusted him as easily as they did. He was in a subordinate position, yet others around him often felt like they owed him something and should help him in small ways regardless. It was never anything directly related to his embezzlement scheme, however.