Along with von Einem , he is considered to be the best suspect for the Beaumont children abduction as he bore a striking similarity to an identikit picture of the suspect for both the Beaumont children and Adelaide Oval cases . A search for a connection to the Beaumonts was unsuccessful as no employment records existed that could shed light on his movements at the time . Some of the records were believed lost in the 1974 Brisbane flood and it is also possible that Brown , who had unrestricted access to government buildings , may have deleted his own files . Brown is considered a suspect for the Beaumont children disappearance , based on the connections that have been made between him and the Adelaide Oval abduction
1974 Brisbane flood
1974 Brisbane flood
Disappearance of the Beaumont children