Leave it to Blizzard to dangle a fucked up little guy in my face and say "You see this guy? He is incredible, isn't he?". What am I to do in this situation besides developing a concerning level of attachment?
Oh, by the way, this Fucked Up Little Guyβ’ mentions his mother a lot in moments where he is doing good or is proud of himself, and yet, in his official story description/lore, we find nothing about her.
Oh, by the way, this Fucked Up Little Guyβ’ asks the only character whom is confirmed to be a mother whether she's sure she doesn't want to adopt him, implying that he had asked before.
Oh, by the way, this Fucked Up Little Guyβ’ comes from a place where radiation is rampaging, leaving him basically brain damaged. Though this does not put a stop to his undeniable genius unmatched by those who had better opportunities growing up than he did.
Oh, by the way, this Fucked Up Little Guyβ’ has lived a life of obsession with explosions and a lifestyle of self-endangerement, so much so that he had disabled himself not once, but twice and is living with a prosthetic arm and a leg, which is, unlike his other limb, is just a "fix" rather than a replacement. We do not know how he'd lost his arm. He had lived a life without rules, where you have to steal or you will be stolen from.
Oh, by the way, this Fucked Up Little Guyβ’ is banished from aforementioned place, the one he called home once, because he had fought against authority, and has tried to prove his worth by wreaking havoc all over the world and steal whatever he can get his little fucked up hands on.
Oh, by the way, this Fucked Up Little Guyβ’ had considered leaving this "we get in there, blow shit up and steal whatever we can" lifestyle behind, but him and his partner (in crime) had been set up for failure from the start, and inside job a to capture them, since they are, as we know, one of the whole entire planet's most wanted criminals.
Oh, by the way, this Fucked Up Little Guyβ’ is probably fated to be an outcast forever. He could count it on one hand how many people have been kind to him from the whole roster, even though he has no evil intentions towards any of them.