You've probably heard of the Boston Strangler, a serial killer who terrorized the Boston area

in the 1960s. But something that might surprise you is even after 13 murders and a confession

to this day, almost all those murder cases are considered unsolved. Hey, it's Brad, and I want

to tell you about a new podcast from my colleagues here at ABC News called Truth in Lies, the Boston

Strangler. Listen, and hear why even today so many questions remain unanswered. We're going to play

you a trailer right now for Truth in Lies, the Boston Strangler. While you're listening, you can

actually click the link in the episode description, literally just like scroll down to the description,

click it and follow the show for the rest of the story. And make sure to watch Boston Strangler

starring Keir Knightley streaming now on Hulu. All right, here's the trailer.

In the early 1960s, a killer held Boston in a state of fear.

Women were taking coke bottles, breaking them up and putting the broken jagged glass on their

window sills so that if somebody tried to commit a window, they were going to step on the broken glass.

It was a crime spree that stumped police for years. It was novel to have a serial killer

continue to kill while the police are looking for him. They had hundreds and hundreds of suspects.

I'm Dick Lair. I'm an author and journalist in Boston where more than a half century ago,

13 women opened their doors to the man who would end their lives. The killer's signature brutal method,

strangling them with their own nylon stockings, bath rope ties, and scarves. Another body in Boston,

Mary Sullivan's 44-A Charles Street apartment two. His rampage vexed investigators.

Investigations needed to be with the cadet of Nonna. The police at one point turned to a psychic.

A story of the Boston Strangler continues to have a hold on the popular imagination,

perhaps because even when a killer confessed, it never closed the case.

Here comes a guy already in prison who was willing to not only confess to my aunt's murder,

...