Sean Sasser, best known as Pedro Zamora's boyfriend on The Real World: San Francisco has died at age 44. The death was announced by fellow Real World cast member Judd Winick on Twitter on Tuesday night.

Twitter

In recent years, Sasser, along with his husband Michael, has been an advocate for AIDS and AIDS research. As recently as May, he was working as a pastry chef in Washington DC.

Sasser, who was HIV positive, died of mesothelioma, a rare cancer of the lungs, according to his life partner, Michael Kaplan, according to the website Queerty.

Friends have organized a celebration of life and candlelight vigil for Sasser Thursday evening at Terry D. Schrunk Plaza in Portland, Oregon.

[Queerty]