I didn’t see any thread on her to my knowledge so I will do the honors. Gia was a famous model during the late 70s and early 80s and widely considered the first “supermodel”. She was openly gay. She began abusing drugs and developed a heroin addiction and destroyed her career because of it. Later, she contracted HIV from a contaminated needle and died from AIDS, being one of the first famous women to die from the disease.
A movie based on her life starring Angelina Jolie was released in 1998.