Sean Sasser, who appeared on The Real World: San Francisco, has died at age 44.

"Our friend Sean Sasser has died. Our love goes out to his family & husband Michael [Kaplan]. We will miss u so much," former The Real World: San Francisco star Judd Winick tweeted Wednesday.

Sasser, an AIDS activist who also worked as a pastry chef at RIS restaurant in Washington, DC, was HIV positive and died of mesothelioma, a rare cancer of the lungs, Us Weekly reported.

Sasser was the former partner of deceased The Real World: San Francisco star Pedro Zamora, who also suffered from AIDS.

The couple's commitment ceremony aired during The Real World: San Francisco's season on MTV in 1994 and was reportedly one of the first to be broadcast on national television prior to any legalization of gay marriage in the United States.

The Real World: San Francisco debuted on MTV in June 1994 and concluded in November of that same year. Zamora passed away on November 11, 1994, only one day after The Real World: San Francisco's finale aired on MTV. 

About The Author: Elizabeth Kwiatkowski
Elizabeth Kwiatkowski is Associate Editor of Reality TV World and has been covering the reality TV genre for more than a decade.