According to Cassidy's last will and testament, Cassidy specifically states that while he has two children — Beau and Katie — any references to his "child or children" are only to Beau and NOT to Katie.
The documents state that Cassidy had approximately $150,000 in various assets, which all goes to Beau. Cassidy's three half-siblings will get anything that is deemed to be "music memorabilia."
The will was originally filed in 2004 and named his then-wife, Susan, as the personal representative under the will. Since they divorced in 2016, his cousin took over the role.
David and Katie (who currently stars on the TV series "Arrow") had a complicated relationship — she was raised by her mother, former model Sherry Williams — and David told PEOPLE in 2009, "Because I didn’t raise her, I didn’t have to parent her."
Cassidy passed away on November 21, 2017 shortly after being admitted to the hospital after suffering from organ failure.
He was 67.