The Debrief is joined by independent cold-case investigator Alex Baber, who believes he may have unmasked the man behind two of America’s most infamous unsolved crimes: the Black Dahlia murder and the Zodiac Killer. Alex makes the extraordinary claim that both were the work of the same man, and explains how he ended up chasing two cases that have haunted investigators for decades. Using AI, historical records, handwriting analysis and a fresh crack at one of the Zodiac’s shortest and most mysterious codes, he lays out how he arrived at his suspect. Alex even reveals the chilling moment he approached the son of the man he believes did it.

Correction: This episode includes a misstatement that Alex Baber was hired by Elizabeth Short’s sister. 

Mr Baber would like to clarify that he was not hired by anyone to investigate these cases. 

He briefly spoke with Elizabeth Short’s sister, and that is the extent of his connection to the family.