Texas Filmmaker Searches for Identity of 19th Century Serial Killer

The idea of police detectives mulling over evidence from twenty or thirty years ago in hopes of finding some new lead or piece of evidence, however small or seemingly trivial, fascinates us. Most of us love a good mystery, so much so that there was an entire long-running television show built on this premise. But, what if the unsolved case was not just a generation or two back, but more than a century past? The term “cold case” does not seem to do it justice. At that point, it’s more like an...