What are the most disturbing missing person's/murder cases for you?

For me, they're the ones which involve remains which have gone unidentified for decades--This saddens me the most because all of these remains were once people like myself and whoever is reading this thread--Some of them runaways, others prostitutes. In all cases sad that they met an untimely end.

Then there are the truly unsolved cases--Cases wherein not even a composite sketch of the perp is obtained. Probably for whatever reason the most disturbing and depressing unsolved case I've ever read about is that of Angela Hammond. It's her case that's motivated me to become involved in law enforcement because I'd like to see her cases--and cases like it--solved.

Missing people - Tara Calico, Asha Degree, Johnny Gosch

Murders - Jennifer Ertman / Elizabeth Pena, Shanda Sharer, Lee Iseli/Neer brothers, Charlie Keever/Jonathan Sellers, JonBenet Ramsey, Molly Bish / Holly Piirainen, Jessica Lunfsord, Dianna Devanna, Jeffrey Curley etc.

As far as type...probably cases involving torture, especially if its related to kids. Quite often its parents who do that, which is even more disturbing.

Johnny Gosch, for sure, along with: Jonbenet Ramsey, Maura Murray and Madeleine McCann.