Alison Carey had a "tough life" prior to her death

He told People: "She had a tough life. We saw it coming, but it's still a shock. She got ill fairly quickly and a month later, she's gone."

No exact cause of death has been revealed for neither Alison nor Patricia yet, but David noted that Mariah's sibling had spent part of her time in a hospice but managed to get her "dying wish" to pass away in her own home in Coxsackie, New York.

The 'Always Be My Baby' singer had not spoken to her sister for years prior to her death, but is was recently claimed by David that Alison had hoped that she and her sibling would make amends.

He told DailyMail.com: "I know it was her dying wish if she could've at least had a conversation with Mariah ... "

Mariah previously opened up about her troubled relationship with Alison in her 2020 memoir 'The Meaning of Mariah Carey', claiming she had long struggled with drug addiction and the singer decided to cut contact with her "ex-sister".

Baker added of the book: "It stung because Mariah called Alison her ex-sister. [Alison] used to babysit and take care of Mariah. When that came out, she couldn't believe that Mariah had done that because she already was not talking to her, but then she kicks Alison in the teeth while she was already down."

After the double tragedy, Mariah shared her sorrow in a statement which read: "My heart is broken that I've lost my mother this past weekend. Sadly, in a tragic turn of events, my sister lost her life on the same day.

"I feel blessed that I was able to spend the last week with my mom before she passed. I appreciate everyone's love and support and respect for my privacy during this impossible time."