
This episode covers the murders of Sandra Valade and Pamela Mason in New Hampshire, the investigation into their deaths, and the eventual conviction of Edward Coolidge.
In February 1960, 18-year-old Sandra Valade went missing after leaving a bus stop near Lake Massabesic. A search revealed her body nine days later, showing signs of sexual assault and multiple gunshot wounds. The investigation pointed to a local suspect, but no arrests were made at the time.
Four years later, 14-year-old Pamela Mason disappeared after accepting a babysitting job. Her body was found days later, also showing signs of violence similar to Sandra's case. Authorities suspected a connection between the two murders.
Edward Coolidge, a local man, became a person of interest after evidence linked him to both murders. He was eventually indicted for Pamela's murder and later connected to Sandra's case through ballistics evidence.
The episode concludes with the aftermath of the cases, including the impact on the victims' families and the unresolved questions surrounding the deaths of Rina Paquette and Danny Paquette, who were also connected to the investigation.
The episode details the murders of Sandra Valade and Pamela Mason, leading to Edward Coolidge's conviction for both crimes.

This episode stands out for the following:
You're next.What connects two murders and a warning?
I think I know who killed Pamela.What connects two murders and a warning?
Because I was scared and that's the truth.What connects two murders and a warning?
Somehow someday we will have an answer.What connects two murders and a warning?
That's baloney.What connects two murders and a warning?
I have no words to express how sorry I am for what I've done.What connects two murders and a warning?