Catching Killers

The victims had been bound, gagged and strangled with a cord.

A plastic bag over her head, and a cord looped around her neck.

The daughter was found hanging from a pipe in the basement.

What leads do you have?

Well, very honestly, we have... no solid leads at all.

The BTK story goes back to January of 1974.

Wichita Police Department, on Friday,

received a letter that most likely came from BTK.

This is one of the most challenging cases I've ever been involved with,

and I find the individual that is doing this

would be very interesting to talk to.

A serial killer apparently has resurfaced.

The killer breaking his silence after 25 years.

Maybe he's a little closer.

It's stressful.

Could be

the guy next door.

I... You know, I have no clue.

Good evening. We have exclusive details

on new communication that could be from the serial killer BTK.

When we opened it up, we weren't sure what we'd find.

The contents looked very suspicious.

The police were called, and in no time,

a detective arrived to retrieve the letter,

to see if it contains the clues needed to track down BTK.

If you have any information that can help police,