'On behalf of the entire Cassidy family, it is with great sadness that we announce the passing of our father, our uncle, and our dear brother, David Cassidy,' his family said in a statement. 'David died surrounded by those he loved, with joy in his heart and free from the pain that had gripped him for so long. Thank you for the abundance and support you have shown him these many years.'
The actor, best known for his starring role as Keith Partridge on the 1670s series The Partridge Family, died from organ failure on Tuesday.
The actor has been in intensive care since he was hospitalised for kidney and liver failure last week.
Cassidy publicly admitted his struggle with alcohol abuse in 2008. He also battled substance abuse issues, which involved a stint in rehab in 2014.
Cassidy is survived by son Beau with ex-wife Sue Shifrin-Cassidy, his daughter Katie, and his brothers Shaun, Patrick and Ryan.
Unsurprisingly, many fans have flocked to Twitter to share their condolences with the Cassidy family.
Our thoughts are with his family and friends.
This article originally appeared on New Idea.