Chris Cornell
Chris Cornell dead at the age of 52. In this photo: Alex & Ani host ROCK4EB! with Sting and Chris Cornell at EBMRF Benefit in Malibu, California, Jan. 14, 2017. Getty Images/Kevin Winter

Chris Cornell's family's latest attempt to get details of the singer's death was turned down, TMZ reported late Wednesday. According to the report, the family's lawyer, Kirk Pasich, sent a Freedom of Information request to the city of Detroit, but they refused to release information stating the case is still "an open investigation."

While declining the request of the lawyer, authorities said giving out information about the findings would "compromise and/or interfere with their investigation." Cornell's family reportedly said they were "mystified" the full autopsy report had not been released yet, but the Medical Examiner's office still ruled the singer's death a suicide.

Read: Chris Cornell Funeral Takes Place As Family Waits For Truth Behind Suicide

The Soundgarden rocker died last week in what authorities ruled was a suicide. However, Cornell's family raised doubts over the findings. Cornell's wife Vicky Karayiannis said there were several unanswered questions about what led to her husband's death and she thought the toxicology reports would answer those questions. She hinted Cornell may have been high on drugs and did not consciously try to kill himself.

More details about Cornell's last conversation with wife Vicky Karayiannis were revealed last week. According to TMZ, Cornell called his wife 30 minutes before he died in his Detroit hotel room.

During the conversation, Cornell complained about his voice, repeating that he “blew” it. The singer then tried to change the topic to something that didn’t make sense and his wife started getting concerned.

She immediately suspected drugs. “I need to know what you took tonight. You don't sound right, sweetheart,” Karayiannis said. He replied, “I was really angry and I just took two Ativan. I'm really pissed and I had to calm myself down.”

Cornell was cremated on May 22, 2017 and his gravestone read: “Voice of our generation and an artist for all time.” His funeral and memorial service took place at the Hollywood Forever Cemetery and was attended by some of the big names of Hollywood. The cemetery is the final resting place for numerous stars, including Jayne Mansfield, Douglas Fairbanks, Rudolph Valentino and Cecil B. DeMille.

Cornell, 52, was found dead in his hotel in Detroit on May 18 hours after his band played a concert in the city.

On Sunday, Peter Conell shared his thoughts and feelings about his brother's death in a Facebook post.

FRIENDS;
It's been difficult to put words together. My heart is broken. Chris was always just my brother. We just "were". No pretense. No dog and pony show. We didn't have to get deep all the time. Sometimes we only needed to just be in the same room and just be present. That was enough.

It wasn't until this week, it really hit me how he belonged to the world. That he is an icon and a legend. That being said, I am so sorry to YOU for your loss. Artists, actors, musicians. We rely on these people to lift us up. To inspire us and distract us in times of trouble. Chris protected us when we needed him to. His one of a kind-ness surrounded us like a suit of armor. He was a warrior and a wizard. A howling wolf and a trusted mentor.

My brother gave freely of his gifts and it was never a struggle. He kept himself from the saturation of celebrity in such a humble way. The power and anger and passion of my brother's music was always genuine, original and legitimate. He was the powerful, sensitive, fragile, angry, mystical creature that will exist forever in his body of work. And he did it for ALL of us. Giving it away. Leaving all on the stage or in the recordings that will keep him immortal.

I will never wrap my head around his passing. I've been in shock since I heard the news. I can't and won't let him go.

Please know, with all the humility I can muster from the depths of a pulverized heart, I THANK EACH OF YOU for your kindness and condolences. THANK YOU for finding me through YOUR tears.

Hold your brothers close.
Much Love!

PC

The first time and the last time we were together.