What bad things did Dr. Jekyll do?

Dr. Jekyll, in his quest to separate his good and evil sides, created the alter ego Edward Hyde, who committed numerous immoral acts, including violence, murder, and reckless behavior. Hyde's actions led to the death of Sir Danvers Carew and caused significant distress to others. Ultimately, Jekyll’s experiments and his inability to control Hyde resulted in catastrophic consequences, highlighting the dangers of unchecked ambition and the duality of human nature.