WHAT THE INVESTIGATION COULD AND COULDN’T DO
The investigation following John List’s disappearance was not negligent. It was limited by what investigations in 1971 could actually do.
A fugitive warrant was issued. List’s name was entered into the NCIC — the National Crime Information Center — so that if his name came up in a law enforcement context, the warrant would be flagged. The warrant remained active throughout the years he was in flight.
But the NCIC in the 1970s and 1980s was not a magic net. It caught people whose names were run against it in a context where there was a reason to check — a traffic stop, an arrest for another offense, an application for something requiring a background check. It did not proactively search for Robert Clark and compare him to John List. It waited for someone to run a name, and Robert Clark’s name was not being run.
The investigation also had a visual problem that was immediately apparent and that would only get worse over time. The photographs of List from 1971 showed a forty-five-year-old man. As the years passed, those photographs became less and less useful. A witness who encountered a man and was trying to determine whether he was John List was being asked to compare a living sixty-year-old to a photograph of a forty-five-year-old. Even a good photograph of a person does not necessarily remain a useful identification tool after fifteen or eighteen years of aging.
The specific decision to cut his face from the family photographs had made the initial investigation harder. It had not made it impossible — investigators clearly had some photographs of him from other sources. But it had reduced the pool of images available and had perhaps degraded the quality of the identification materials they were working with.
By the mid-1980s, the List case had the characteristics of a long-dormant cold case: the warrant was still active, but there was nothing actively driving the investigation forward. Without a lead, without a tip, without a sighting, there was nothing for investigators to act on.