The Disappearance of Don Lewis

The disappearance of Don Lewis dates back to the latter years of the last millennium. It was, apparently, the Netflix documentary series, Tiger King: Murder, Mayhem and Madness, alongside a later offering by investigative journalist Louis Theroux, that has thrust the case back to national prominence. In fact, given the pull of those two media megaliths, the story is back at the forefront of global interest.
We can possibly trace the beginnings of this disappearance back to the point when Carole Baskin and Don Lewis met. Both were already married, but it soon became apparent to them that they would become a couple. A decision that, it seems, both would come to regret... A decision that would decades later lead viewers and readers alike asking one question. What happened to Don Lewis?