Thanks for the kind words, folks. If you think any of your friends might enjoy reading Pearl's story too, then please do help me spread the word. Researching and writing this tale for the (free) online book linked above has consumed about six months of my past year, and I'm confident it's the fullest and most reliable telling yet.
As Rapparee rightly says, you can indeed visit the spot where Pearl died in Fort Thomas, which I was shown by the couple who now own the old Lock farmhouse nearby. The murder spot is on what was once part of the Locks' farm, and the couple who've got the house now played a crucial role in getting the bag which once held Pearl's head an exhibit of its own in the local museum.
It's true also that the head itself may well have gone into the Ohio River. But my own personal view is that Cal Crim, the case's lead detective, was probably right when he concluded it ended up at .... another location which you'll have to read my book to discover.
[Incidentally, could one of the moderators please correct my bone-headed typo in this thread's title? Thanks.]