Who Killed Mary Whats'ername? 1971

Synopsis:

A prostitute is murdered on the streets of a tough, low-income neighborhood. A diabetic retired boxer who knew her is appalled by the lack of interest shown in the case by the police or anybody else in the neighborhood, and decides to investigate the case himself.

Directed by: Ernest Pintoff
Written by: John O'Toole
Release date: 1971-12-11
Runtime: 90 minutes
Tagline: Somebody just murdered your friendly neighborhood hooker.
Cast:
Red Buttons
Red Buttons
Mickey Isadore 
Sylvia Miles
Sylvia Miles
Christine 
Alice Playten
Alice Playten
Della Isador 
Conrad Bain
Conrad Bain
Val Rooney 
Sam Waterston
Sam Waterston
Alex Monte