• Naomi Judd died in April at the age 76 due to a self-inflicted gunshot wound
  • Several prescription drugs used to treat post-traumatic stress disorder and bipolar disorder in Judd's system
  • Wynonna, Ashley and Naomi's husband, Larry Strickland, appealed to seal police reports and recordings from the investigation

An autopsy report released Friday confirmed that country singer Naomi Judd committed suicide. The mother of Wynonna and Ashley Judd died in April at age 76, just one day before she was to be inducted into the Country Music Hall of Fame.

The report, as per Associated Press, indicated that Naomi died of a self-inflicted gunshot wound on April 30 in her Tennessee home. It was also revealed that many prescription drugs used to treat post-traumatic stress disorder and bipolar disorder were in the songstress' system at the time of her demise.

"We have always shared openly both the joys of being family as well its sorrows, too. One part of our story is that our matriarch was dogged by an unfair foe," a statement from the family, who has asked for privacy as they mourn and encouraged anyone in a similar crisis to ask for help, released on Friday read. "She was treated for PTSD and bipolar disorder, to which millions of Americans can relate."

The autopsy findings came weeks after Wynonna, Ashley and Naomi's husband Larry Strickland filed a petition in Tennessee, asking to seal police reports and recordings from the investigation into the "Grandpa" hitmaker's death.

The petition stated that the release of the records, which also include interviews with Naomi's immediate family after her death, would cause "significant trauma and irreparable harm." Strickland reportedly said in the petition that he did not know his interviews with the police were recorded, which is why he provided personal information.

Ashley Judd, for her part, said she did not want her interviews made public since she was in "clinical shock, active trauma and acute distress" at the time. During a recent guesting on the "Healing with David Kessler" podcast, Wynonna's sister revealed she has learned to understand that Naomi's pain was a product of her disease.

"I look back on my childhood, and I realize I grew up with a mom who had an undiagnosed and untreated mental illness," Ashley Judd said.

"And there are different behavioral expressions, interactions, flights of fancy, choices that she made that I understand were an expression of the disease, and I understand that and know that she was in pain and can today understand that she was absolutely doing the best she could, and if she could have done it differently, she would have," the "Berlin Station" star added.

Earlier in the conversation, Ashley explained that something she had learned over the past few years was that she "didn't cause" her mom's illness. She also acknowledged that she "couldn't control it" and also "couldn't cure it." With this in mind, the "Double Jeopardy" actress said she hoped that Naomi's passing brought with it a sense of peace for the "Mama He's Crazy" singer.

Naomi Judd
Naomi Judd visits "Varney & Co" at Fox News Channel Studios on December 8, 2017 in New York City. Roy Rochlin/Getty Images