The 25-year old, a former student at the University of the Arts London, spoke at a TED talk in May 2016 about being diagnosed with HIV three years ago. The main version of his death is a suicide, but it is yet to be confirmed. The campaigner has been known for launching The Positive Project, which aimed to educate people about HIV and shine a positive light on it. As part of this, he launched a t-shirt range—with all proceeds going to HIV research and treatment—and an app. In his last Instagram post dated October 5, Alexander posted a photo with the phrase “rebuild yourself, in private,” he also said he would come back soon. Nobody could suggest that it was a farewell, but it was. Other campaigners have remembered Alexander on social media.