Jackie Siegel is in mourning.

The star of the 2012 documentary Queen of Versailles‘ sister Jessica Mallery died April 5 from an accidental overdose, Jackie’s charity Victoria’s Voice Foundation confirmed April 8, three days after Jackie announced the passing of her husband David Siegel.

“As I mourn the profound loss of my beloved husband David Siegel, who passed away on April 5 at the age of 89, my world was shattered again yesterday by the unexpected loss of my beautiful sister, Jessica Mallery, 43, to a scourge we as a family sadly know too well—accidental drug overdose,” Jackie shared in her Instagram statement. “Jessica died after using cocaine laced with fentanyl.”

“Her death is another stark reminder of the drug epidemic and fentanyl crisis plaguing our country,” she continued, “and the urgent need to address substance abuse in order to save lives. Our work at Victoria’s Voice remains more critical than ever, and in her memory, we will continue to raise awareness and advocate every single day until this form of grief is a distant memory in this country.”