Josh Greenberg, cofounder of the controversial and recently shuttered music streaming service Grooveshark, was found dead in his Florida home on Sunday. He was 28 years old.

There was no evidence of foul play or suicide, according to the Gainesville, Florida police department.

Josh Greenberg, co-founder of #Grooveshark was found dead in his Gainesville home Sunday evening. No evidence of foul play or suicide. — Gainesville Police (@GainesvillePD) July 20, 2015

Greenberg founded Grooveshark in 2006 with Sam Tarantino when the pair were just 19 and students at the University of Florida. The service emerged as the music industry transitioned from rampant illegal downloading to legal streaming. But Grooveshark's team struggled to win approval from the major labels.

"It was always the chicken and the egg: You go into the labels and they say, 'That's an interesting idea, go get users.' And we get users and they're like, 'Oh, you're a pirate,'" Tarantino, the CEO recalled to Mashable in 2013. "At the time they didn't have a way to say, 'Here's an experimental license, go do it and we'll negotiate later.'"

Grooveshark shut down in late April, effectively sued into oblivion by the labels.

Josh's mother Lori Greenberg told The Gainesville Sun that her son was in good health and good spirits. “He was excited about potential new things that he was going to start,” she said according to the publication, which was first to report the news of his death.

Tarantino did not immediately reply to our request for comment.

Friends and followers of Greenberg took to Twitter on Monday to mourn the loss of a key figure in the Gainesville startup community.

Josh Greenberg was a friend and I hold immense respect for him. I am heartbroken. http://t.co/Se6eBI1exC — Scott Miller (@sbmiller5) July 20, 2015

Thank you @joshgreenberg for giving me the chance to get my career started with grooveshark. The world lost a great entrepreneur. RIP. — Tyler J. Nettleton (@tyler_nettleton) July 20, 2015

RIP @joshgreenberg. You certainly helped put Gainesville on the map through everything you did for our community. — Mat Houchens (@NuckFuggets) July 20, 2015