Drag performer Colin Seymour, also known as Crystal, told the BBC he was demanding an investigation into the handling of case and an update on recommendations after the Stephen Port murders.
He said the handling of the case had been “disgraceful”.
“It seems very clear that homophobic bias has influenced the investigation in this case,” the RuPaul’s Drag Race star said.
“It paints a very clear picture that if you’re a queer person, especially if you’re gender non-conforming, and you die unexplained, then the police don’t care.
“It seems to be only through the threat of public action that anything’s been getting done with this case.”
The Met’s Det Ch Supt Christina Jessah said the force was aware that some felt “frustration with the pace of the police investigation”.
“We continue to examine all lines of inquiry in relation to Steven’s death and remain steadfast in our determination to establish the facts.”