In this episode we discuss the life and crimes of serial killer Tony Costa, also known as the Cape Cod Vampire. 

Sources: 

https://murderpedia.org/male.C/c/costa-antone-charles.htm

https://time.com/archive/6633914/crime-graves-in-the-dunes/

https://en.m.wikipedia.org/wiki/Tony_Costa

Hell Town: The Untold Story of a Serial Killer on Cape Cod by Casey Sherman