Beaumont case is that he was younger than the suspect seen with the children in 1966 (the suspect was reported to be in his mid- to late thirties, whereas von Einem was 20 or 21 at the time). Another important distinction is that he was convicted of murdering a 15-year-old boy and suspected of killing males in their teens and twenties; victims older than the Beaumont children or Joanne Ratcliffe and Kirste Gordon. Such disparities amongst victims of a serial killer are not unheard of, but unusual. The reference to surgical experimentation von Einem had purportedly made to Mr B also corresponded to the coroner's reports on several of the murdered youths. Von Einem also told the witness that he had taken two girls from the Adelaide Oval during a football match, as Ratcliffe and Gordon had been; he said he had killed them but did not elaborate. The cases of the Beaumont children and of the Adelaide Oval abductions remain officially open. However, von Einem matched the police sketches of the suspect in both the Beaumont and Oval cases and, in 1989, he was identified as a suspect in a confidential police report. In August 2007, it was reported that police were examining archival footage from the original Beaumont search, shot by Channel Seven, that shows a young man resembling von Einem among onlookers. The report said that police were calling for information to establish the man's identity. Arthur Stanley Brown Arthur Stanley Brown (1912–2002) was charged in 1998 with the murders of sisters Judith and Susan Mackay in Townsville, Queensland. They had disappeared on their way to school on 26 August 1970 and their bodies were found several days later in a dry creek bed. Both girls had been strangled. Brown's July 2000 trial was delayed after his lawyer applied for a section 613 verdict (unfit to be tried) from the jury. He was never retried as he was found to have dementia and Alzheimer's disease. Brown died in 2002. Along with von Einem, Brown is considered to be the most likely suspect for the Beaumont abduction as he bore a striking similarity to an identikit picture of the suspect for both the Beaumont and Oval cases. A search for a connection to the Beaumonts was unsuccessful as no employment records existed that could shed light on Brown's movements at the time. Some of the records were believed