-go too fast ... right. Sorry. Here we go. Deep breath.
Heroes have this weird habit of being mopey bastards. Batman is the obvious example, what with his "my parents are dead but I'm super rich and that kinda makes it better" schtick, but this is the primary motivation for an absolutely insane number of "badass" pop-culture heroes: Spider-Man never gets over the guilt of his uncle's death (also not his fault), one of the Green Lantern's girlfriends gets stuffed in a refrigerator. Fox Mulder never really gets over his sister, unless he did in a later episode and I forgot about it. Martin Riggs in Lethal Weapon never gets over his wife's death. Inigo Montoya is, if I remember The Princess Bride correctly, pissed off about about the death of his mother. "My name is Inigo Montoya," I believe he says, "prepare to die for killing my mother."
20th Century Fox
Pictured: Inigo Montoya, with his signature weapon.
Kids are pretty much interchangeable at that age, right?