US Army Lieutenant accused of murdering innkeeper Barney Quill. He claims temporary amnesia to claim an 'irresistible impulse' defense, likely feigned under Biegler's guidance. After being acquitted by reason of insanity, he flees with Laura, leaving a note justifying his flight using the same legal rationale.
Mary's testimony is pivotal to Manion's legal outcome.
Indirect professional connection via the defense team.
Husband and wife at the center of the murder trial.
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