Indianapolis police are investigating the death of a man found dead in a tanning bed at a Planet Fitness gym Monday morning.

The man was identified as Derek Sink, 39, by the Marion County Coroner’s Office. 

Sink had went into a tanning bed on Friday, his family told NBC affiliate WTHR of Indianapolis. 

When he failed to come home, his family reported him missing. His aunt said that Sink was wearing an ankle monitor which led investigators to determine he never left the gym. He was ultimately located in the tanning bed at the gym, located in the 8000 block of Hardegan Street, on Monday morning. 

Family said that Sink had struggled with drugs and a needle was found in the room with him. 

Marion Superior Court records show Sink had been charged with possession of a narcotic drug and possession of a controlled substance last year. In a plea agreement to the first charge, he was sentenced to one year of home detention including drug testing, which started in May.

It’s not clear how Sink went unnoticed for so long.

The coroner’s office has not yet determined a cause or manner of death as of Wednesday morning.  Indianapolis Metro Police says the death investigation is ongoing.

Elizabeth Len was at that Planet Fitness Monday morning before law enforcement discovered Sink.

She said that she and other members noticed a bad smell in the building near the tanning rooms. “The tanning bed has a door, I believe, but still, why are we not concerned that the tanning bed has been closed for three days, potentially?” Len said to WTHR.

Planet Fitness’ Chief Corporate Affairs Officer McCall Gosselin said in a statement: “We were deeply saddened by the passing of one of our members, and the franchise owner is working with the local authorities in their investigation.”

“At Planet Fitness, we have robust operational brand protocols in place, as the safety and well-being of our members is our top priority. We are working closely with our local franchisee to ensure they are upholding those brand protocols,” Gosselin added.

An investigation is underway to determine what led to the death of a man whose body was found inside a tanning bed three days after he entered a Planet Fitness in Indianapolis.

Just before 8:30 a.m. on Monday, the Indianapolis Metropolitan Police Department received a report of a body found at Planet Fitness. 

The Marion County Coroner’s Office identified the man as 39-year-old Derek E. Sink.

According to police records obtained by 13News, Sink’s family last had contact with him on Friday, and they reported him missing on Sunday. 

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Police could only confirm to Fox News Digital that they were investigating a death at the gym and did not elaborate on the details of the investigation. 

A woman who was at Planet Fitness on Monday morning told 13News that she and other members noticed a foul smell in the building that got worse near the tanning rooms. 

The woman also questioned how something like this could happen.

“The tanning bed has a door, I believe, but still, why are we not concerned that the tanning bed has been closed for three days, potentially?” Elizabeth Len asked.

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A 39-year-old man’s body was found in a tanning booth at an Indiana Planet Fitness, according to multiple reports. (Raymond Boyd/Getty Images / Getty Images)

Sink’s family told 13News that he struggled with drugs and a needle was reportedly found in the room with him, while his aunt told the news station he was wearing an ankle monitor that helped investigators determine he never left the gym.

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The family of a man who was found dead days after he died at a Planet Fitness in Indianapolis has asked the company to enact stricter policies with an end-of-day checklist.  (Don Emmert/AFP via Getty Images / Getty Images)

Planet Fitness released a statement to Fox News Digital confirming the death and shared their condolences.

“We were deeply saddened by the passing of one of our members, and the franchise owner is working with the local authorities in their investigation. At Planet Fitness, we have robust operational brand protocols in place, as the safety and well-being of our members is our top priority. We are working closely with our local franchisee to ensure they are upholding those brand protocols,” McCall Gosselin, chief corporate affairs officer at Planet Fitness, said in a statement. 

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Sink’s family also told 13News that they hope to see stricter policies on cleaning and an end-of-day checklist from the staff to prevent this from happening to another family. 

The circumstances of Sink’s death remain under investigation. 

Local artists Keya Benberry and Kevin Brents, also known as Cho Naptown’s Prince, have teamed up to release a new single that celebrates Indianapolis, fondly known as Naptown. The song, an homage to the city’s spirit, highlights the artists’ deep connection to their hometown and brings together Benberry’s soulful sound and Brent’s hip-hop influence.

“My children live out of state, and I wanted to remind them that Naptown is home,” Benberry said. The collaboration is her third project with Brents, with whom she frequently partners to bring a hip-hop edge to her music. “When I need a verse, Naptown’s Prince is my guy,” she said.

For both artists, this song about Indianapolis was a natural extension of their passion for representing their city. Brents, who previously held a record deal with Jive Records, says his title, “Naptown Prince,” reflects a lifelong dedication to putting his city on the map. “I’ve been repping Naptown from day one,” Brents said. The single allowed the duo to “put on our nap clothes” and lean into the culture of Indianapolis.

Ana, also a realtor in the area with the Benberry Realty Group, says music is her true passion. She also performs with the local band, The Unit Band, well-known in Indianapolis for its blend of original music and live performances. “I’m a hometown girl,” she said. “I rep my city every Sunday with my Colts, Fever, and Pacers gear.”

Benberry and Brents aim to keep their music local and hope to bring other artists into the mix. “We’re planning a remix,” Benberry said, expressing her goal to feature other local rappers and R&B artists. “I want them to tell us about their Naptown.”

Beyond the music, Benberry has always found joy in seeing others perform her work, a source of pride she believes helps connect the music community in Indianapolis. “When I hear someone else play a song I wrote, that’s everything,” she said.

The single stands as a proud tribute to Indianapolis, highlighting its distinct identity and culture. Listen to more of Benberry’s music at SoundCloud.com.