We’re saddened to share the surprising news of Josh Greenberg’s death at the age of 28. Greenberg, the co-founder of the now-defunct streaming service Grooveshark, was found dead by his girlfriend in his Florida home on Sunday, July 19, according to The Gainesville Sun.

Along with Sam Tarantino, Greenberg co-founded and launched Grooveshark in 2006; he was just 19 at the time.

Greenberg’s mother, Lori, spoke with The Gainesville Sun, saying her son “had no health problems and she was told by police who investigated ... that there was no evidence of foul play, injuries or drugs.”

When Grooveshark closed up shop earlier this year, Lori said Josh wasn’t depressed: “He was excited about potential new things that he was going to start.”

According to the Sun, at Grooveshark's peak, the service reached "up to 40 million users a month and 145 employees, occupying most of the second floor of the Union Street Station" in Gainesville (along with a New York City office).

Our thoughts are with Greenberg's family and friends. His mother told the Sun that Josh's friends will be holding a memorial service in Gainesville.