From the podium, Detective Fairbairn moves on from the photographs to a list of suspects. There is the family's next-door neighbour at the time of the murders, subsequently arrested for rape and battery: he was given a polygraph test about the crime, and passed; there is no physical evidence to link him to the scene. Then there is the 26-year-old schizophrenic who escaped from a mental hospital the night before the killings, who had a history of violence involving axes; at one point he confessed to the murders, but was unable to provide detectives with any details of how he had committed them. And then there is Michael Currie – 27 at the time of the murders – who told police that he discovered the butchered bodies of his wife and family when he returned home from work that day. A former drug user, Currie had been having an affair with a co-worker for months before the murders. On the day of the crime, he left work for an extended period of time, apparently to buy a fan from a general store, where the clerk distinctly remembers him because he was soaked in sweat. Currie was questioned by detectives, and his clothes confiscated, submitted and resubmitted to the Georgia State Crime Lab for tests: 'No evidence of value, such as blood, was recovered,' Fairbairn says. Currie remains a suspect, but in the 23 years since the murders, the Columbus police have found nothing to conclusively link anyone to the crime. The case remains one of the most infamous murders in the history of the city – and has so far frustrated every single one of the 20 or 30 detectives who have investigated it.