
The trial that brought down Alcatraz A young, inexperienced public defender is assigned to defend an inmate accused of committing murder while behind bars.
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Murder in the First does not have end credit scenes. You can leave when the credits roll.
Explore the complete cast of Murder in the First, including both lead and supporting actors. Learn who plays each character, discover their past roles and achievements, and find out what makes this ensemble cast stand out in the world of film and television.

Gary Oldman
Glenn

Brad Dourif
Byron Stamphill

Stefan Gierasch
Warden James Humson

William H. Macy
Bill McNeill

Christian Slater
James Stamphill

Stephen Tobolowsky
Mr. Henkin

Kevin Bacon
Henri Young

R. Lee Ermey
Judge Clawson

Kyra Sedgwick
Blanche

Embeth Davidtz
Mary McCasslin

Mia Kirshner
Rosetta Young

Charles Boswell
Simpson

Richie Allan
Jury Foreman

Ben Slack
Jerry Hoolihan

Mary Mackey
Prison Guard's Wife

Gary Ballard
Alcatraz Guard Swenson

Stuart Nisbet
Harve

Tony Barr
Winthrop

Alex Bookston
Alcatraz Doc

Herb Ritts
Mike Kelly
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Who is the main protagonist in 'Murder in the First'?
Henri Young
William McNeil
Milton Glenn
James Stamphill
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Read the complete plot summary of Murder in the First, including all major events, twists, and the full ending explained in detail. Explore key characters, themes, hidden meanings, and everything you need to understand the story from beginning to end.
Henri Young’s story begins when he is just 17 years old and finds himself trapped in a cycle of hardship as an orphan. Living in poverty along with his younger sister Rosetta, Henri attempts to find work at a local grocery store but is refused employment. Facing starvation and desperate circumstances, he makes the difficult decision to steal $5.00 from the store to provide food for himself and Rosetta, who is sent to an orphanage following his arrest. Because the store also functions as a post office, his theft is escalated to a federal offense, which results in Henri being transported to the infamous Leavenworth Penitentiary in Kansas. Over the years, his criminal record and circumstances lead him to be transferred to Alcatraz, a prison known for its inescapability and brutal conditions.
At Alcatraz, Henri falls under the oppressive control of associate prison warden Gary Oldman as Glenn, who enforces harsh disciplines and takes a particular interest in maintaining the prison’s reputation as unbeatable. Henri quickly becomes involved in a desperate escape attempt alongside two other inmates, Rufus McCain and Arthur Barker. However, things go tragically wrong when McCain betrays the plan, resulting in Barker being killed by guards and Henri being severely punished. Glenn condemns Henri to the notorious punishment of “the hole,” a deep, dark dungeon within Alcatraz, where he endures relentless torture and mistreatment. In collaboration with Warden Stefan Gierasch as Warden James Humson, Glenn enacts extreme measures, including beating Henri with a club, throwing him down stairs, hitting him with a blackjack, and even leaving him naked for extended periods. Glenn inflicts additional pain by using a straight razor on Henri’s ankle, causing a hobble, all as a show of domination and control. Apart from a brief 30-minute visit on Christmas Day in 1940, Henri is confined in this solitary space for three years, which devastates his mental health and slowly erodes his sanity.
When Henri is finally released back into the general prison population, his mental state deteriorates further. During a meal in the cafeteria, he experiences a psychotic episode and, in a fit of rage, attacks fellow inmate McCain — stabbing him to death with a spoon while guards and other prisoners watch helplessly. His act of violence prompts a trial in San Francisco, where the district attorney William H. Macy as Bill McNeill and the public defender’s office, led by Stephen Tobolowsky as Mr. Henkin, initially believe the case will be straightforward and destined for a conviction. However, public defender James Stamphill (portrayed by Christian Slater), a recent Harvard Law graduate, becomes determined to challenge the narrative.
Stamphill uncovers troubling truths about the conditions at Alcatraz, arguing that the prison’s brutal environment drove Henri to insanity. He attempts to bring the prison’s inhumane treatment to light, arguing that the harsh conditions and the deliberate abuse committed by guards, including Glenn, severely impacted Henri’s mental health. During the trial, Stamphill questions ex-guard Charles Boswell as Simpson, who admits to participating in the torture, but the judge R. Lee Ermey as Judge Clawson dismisses much of this testimony, citing Simpson’s firing for intoxication. Throughout the proceedings, Stamphill also highlights that Warden Humson claims to have had little interaction with Henri, despite the evidence suggesting he was aware of Glenn’s mistreatment.
Stamphill’s relentless questioning exposes the illegal and inhumane tactics used at Alcatraz, revealing that the prison systematically broke numerous laws in its confinement practices. He manages to locate Rosetta, who visits Henri and shares that she is doing well, even naming her child after him. During a critical moment, Henri confesses to Stamphill that he wants to change his plea to guilty — not because he’s remorseful, but because he believes dying would be easier than returning to the brutal confines of Alcatraz. Despite this, Henri ultimately is convicted of involuntary manslaughter, not murder, and the jury recommends that Alcatraz itself undergo a federal investigation.
Stamphill, dedicated to justice, vows to appeal and seeks to have Henri transferred to a different facility to reopen his case. In a poignant reflection, Stamphill states that this would be the last time he saw Henri alive, as Henri is found dead in his cell, having written “victory” on the walls — a symbol of his resilience in the face of relentless torment. Henri’s death is portrayed as a silent protest against the brutal system, and an indication that even in death, he refused to be defeated.
The trial results lead to significant repercussions: the Supreme Court later agrees with the evidence presented, acknowledging the abusive conditions at Alcatraz and ordering its closure. Glenn is charged with mistreatment and is found guilty, marking the end of his career in the U.S. penal system, though he remains in private practice. The film concludes with a reflection on Alcatraz’s legacy, noting that it shut down permanently in 1963 and has since become a popular tourist destination visited by over a million people annually.
In the end, the story is not only about Henri’s tragic circumstances but also about the fight for justice against a system designed to punish and humiliate. Stamphill’s narration underscores that Henri’s brave stand helped shed light on the prison’s horrors, and in doing so, he secured a measure of victory. The film closes with a reminder that Alcatraz as a prison closed forever, but its history of abuse and resilience continues to resonate through the stories of those who fought for change.
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