Detective Superintendent Kenny McDonald, who is leading the investigation, made a public plea for witnesses on Thursday.
“I appeal to men who were subjected to abuse 30 years ago to come forward. We are also investigating the murder of three young boys – we are determined to find answers.”
Much of the information currently available was given by one alleged victim, known as Nick.
Nick claimed he was abused at high-profile parties and events between the ages of seven and 16 at various London locations, including a flat in Dolphin Square, Pimlico, which is currently being investigated.
McDonald said Nick was a “credible” witness who was telling the truth, and urged residents of Dolphin Square from the 1970s to come forward, as they may have “seen or heard something that they only understand the significance of now.”