I'm writing a plot for a tabletop game, and one of my players is running a character who was taken from her home at a very young age. (it's her earliest memory) She was raised from that point on by an uncle she did not (and still does not) like who works for a mafia-like criminal organization. She joined up, too, once she was old enough. At the time of our plot, she's in her early 20s and hopes to gain a position of power in the organization. She knows nothing about her biological parents, but thinks they knew about (or at least suspected) her uncle's involvement in crime, and did not approve of his work. I'd like to bring her parents into the story at some point for a plot twist or side plot, but I'm drawing a complete blank as far as interesting ideas go. Please help!
Additional info about the game: The game takes place in the mid-90's and involves sometimes-friendly monsters. (Some are pets, some are killers) The criminal organization makes money by illegally catching and selling the monsters, and occasionally by plain old petty theft. Many people keep pet monsters for personal protection.