Slash’s late stepdaughter Lucy-Bleu Knight shared a heartfelt message before her sudden passing on Friday, July 19. The 25-year-old posted a selfie on Instagram and expressed her regret over making other people feel inferior, though the upload appeared to be pre-scheduled, as it wasn’t posted until Monday, July 22. “Whether I made you feel excluded, manipulated/ controlled you, told you to quit your day job from the comfort of being financially supported by my parents, or drowned real issues in toxic positivity — I am sorry,” she captioned the photograph. “Countless missed opportunities and co…