I was going to put this film in another thread, but I decided to put it here. (It's a documentary posted on youtube that's 91 minutes long.)
the name of this documentary is "crazy love".
The blurb on You tube is as follows:
From the late '50s through the '70s, New York tabloids fed on the lurid and bizarre tale of lawyer/stalker Burt Pugash and his obsession with Linda Riss, a young working-class woman whose life was forever changed by a shocking act of violence. Noted publicist and documentarian Dan Klores tells this morbidly fascinating story with its many twists and surprises. Featuring interviews with Pugach, Riss and veteran New York journalists. Winner of the Best Documentary Independent Spirit Award. "Like a noir-thriller" - Los Angeles Times.