Tonton Streaming Starsky & Hutch (1975) S1E17 - Silence

The Detective duo meet Larry—a friendly ex-con, deaf-mute—living at a local half-way house, when they book him on a small charge. But when the trail from a series of robberies leads to Larry being the culprit, the pair are convinced of his innocence, and that someone else is using him as the ideal pawn.