The History Channel's 'Haunted History' series did an episode on HH Holmes in 2013.
It's entitled Murder Castle, (Season 1, Episode 3). I stumbled on it completely by accident when channel surfing to see what's on.
They go heavily into the 'haunted spirits' angle, meaning the ghosts of Holmes victims are still roaming through his hotel in Chicago. This is nonsense to me, but when I hit the channel there was a photo of Holmes on screen that was one of the photos that Terry had posted. What a coincidence. It got my attention immediately and I watched a few minutes of it.