The One Man Jury (released as The Loner on UK video) is a 1978 American neo-noir film directed by Charles Martin (1910-1983) and starring Jack Palance, Christopher Mitchum, Pamela Shoop, and Cara Williams.
[1][2] Jim Wade (Jack Palance) is a ruthless cop with a bad reputation of being rude to suspects, informants, witnesses, and just about anyone who crosses paths with him in the wrong way.
When a mysterious serial killer named the Slasher starts killing women, Wade vows to end the killing spree by any means possible, whether legal or not.
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