And I'd go looking for your little bro if I were you... I don't think that was him in your apartment based off the note. The tone made it sound like it was written by someone who was hurt/angry with the situation, like your real parents or one of their siblings/friends/etc? You didn't say how old you are now but I assume it's possible Xavier and Tricia could still be alive ? Unless your current 'parents' killed them when they took you...?

Please keep us updated!! And be careful!