Who's the Killer? Wichita 1974 Pt. 3

The Killer walks into the Wichita Public Library and leaves a letter in an Applied Mechanical Engineering book.

Then calls he call the local newspaper and tells them where the letter is.

The letter tells details of the Otero murders that haven't been released to the public.
When the police get this letter, that is when they find out that their is a serial killer out there.

In the letter he states, "You'll probably call me psychotic with a sexual hang up."
He says that he wan'ts to be known as the B.T.K. Strangler.
Bind Them
Torture Them
Kill Them

11:55 a.m., Thursday, on March 17, 1977, Shirley Vian was 26 years old and home with her three kids.
A man knocks on the front door.
He claims he is a private detective.
Five year old Steve opens the door.
The man shows the family a picture he had and asks them if they can ID the picture.
He then pushed himself inside the door and pulled his gun.
He tells the mom he has sexual fantasies and that he has to tied her up and maybe the kids too.

The man tries to tie the kids up in the mom's bedroom, but they freak out, so he takes them to the bathroom.
He put blankets and toys in there and then tied the bathroom door shut.
Then the man tied the mom up in the bedroom, put a bag over her head and strangled her to death.
The kids were banging on the bathroom door and yelling.
The telephone rang.
The killer cleaned up and left.
The children escaped and discover their lifeless mother.

THERE IS STILL MORE TO GO......