Multiple arrests and drug posession
From her wikipedia page:
Chase was arrested in November 2017 for riding in a stolen car. She was arrested again in 2018 for drug possession charges 18 months after allegedly leaving a dying man outside an emergency room.
https://en.wikipedia.org/wiki/Daveigh_Chase
Looks like things really went off the rails for her after 2016 which was when she stopped acting. What went wrong with her?