Police are attempting to solve the case murder of Bernadette Szabo by using a life-size hologram of the victim.

The hologram looks out at passers-by, then appears to knock on the window and breathe on the glass. The glass seemingly fogs up, and the word “help” appears.

The investigation into the 1995 murder of Texas teacher Mary Catherine Edwards went cold for years. Advances in forensic science and tireless work by investigators would reveal the startling ...