Detailed Explanation
The revelation that Perry is Ziggy's father adds devastating weight to his death. Jane was raped years ago by a man she knew only as "Saxon Banks." Throughout the season, she searches for him, not knowing he's married to one of her new friends. On trivia night, Jane finally sees Perry and recognizes him as her rapist. This discovery happens moments before Bonnie pushes him to his death—meaning Perry's violence created two of his victims' connections: Celeste through marriage and Jane through assault.