I watched a documentary in the 1990s. It was about the investigation into the molestation and murder of a prepubescent boy in England in the 1970s. It was in the 1970s, so suspicion immediately fell on gay men. The police opened an investigation and right away approached known homosexuals and entered gay bars, asking men to come to the station for questioning. The men were photographed, and detailed notes were taken of the interviews. At one point, a gay man was accused by another of the crime. Once the accused realized that he was under suspicion, he told the detectives interviewing him that he was saying nothing without his solicitor present. It turned out that the accusation was wrongful and levelled against him by another man who had a grudge. Eventually, the culprit was found and confessed when presented with evidence against him. He was not a gay man and had no previous suspicion of sexual interference with boys. He said that the boy struggled during and after the assault and that he had not meant to kill him. The man was convicted of the crimes of manslaughter and sexually assaulting the boy. He was imprisoned for his crimes. With the case closed, the police destroyed the evidence they collected in their investigation: the photos and notes from the interviews of the gay men.