A biohacker who once turned heads by injecting himself with an untested herpes treatment died Sunday in a spa room in Washington, DC, police confirmed Tuesday.

Aaron Traywick, 28, was found dead in a spa room in the 1000 block of Massachusetts Avenue at about 11:30 a.m. Sunday. An investigation has been launched into his death, but investigators with the Metropolitan Police Department don’t have any evidence to suggest foul play, a police spokeswoman told The Post.

Traywick’s body has been taken to the chief medical examiner’s office for an autopsy, police said.

Two people who worked with Traywick at Ascendance Biomedical told VICE News that a relative of Traywick’s told them he was discovered in a floatation therapy tank.

“Aaron was a passionate visionary,” software engineer Tristan Roberts told VICE in a statement. “He seemingly never tired as he brought people together to work on some of the most imposing challenges facing humanity. While many in the biohacking scene disagreed with his methods, none of them doubted his intentions.”

Traywick, according to Roberts, had been seeking “nothing short of a revolution” in the field of biomedicine, hopefully leading to the “democratization of science and the opening of the flood gates for global healing.”

Traywick’s death follows weeks of no communication with his Ascendance Biomedical colleagues due to differences regarding the company’s future, according to researcher Andreas Stuermer.

“We all lost touch with him,” Stuermer told VICE News last month during a profile on the tiny startup. “It was more than four weeks ago.”

Traywick made headlines in February when he injected himself with an unregulated herpes treatment during a biohacking conference in Texas. In October, Traywick also staged a live demonstration of a purported gene-therapy treatment for HIV, sitting next to Roberts as he injected himself with the compound. Roberts said his viral load had risen one month after the injection, Live Science reports.