Keller eventually does get a chance at a kind of moral redemption when he saves Beecher's life after Schillinger stabs him and Beecher requests that Keller be moved back into their old familiar cell they share a happy reunion on New Year's Eve. Combined, he and O'Reily, an inmate equally devoid of conscience, are a force to be reckoned with, plaguing Schillinger and, along with Beecher, playing a role in the death of his son, Andrew.

Keller briefly allies himself with Ryan O'Reily for protection against the Aryans, who now hate him for becoming Beecher's lover and for turning himself in (as Beecher requested), implicating Schillinger. When Sister Pete discovers that his confessions are insincere, she too turns her back on him. During the meetings, Keller first tries to make her feel ineffective as a psychiatrist then through various sexual provocations, forces her to question her commitments as a nun. Keller begins attending counseling sessions with the prison psychiatrist, Sister Peter Marie, as a ploy to win back Beecher's favor. Keller complies, but Beecher still rejects him. Keller later tries to seek Beecher's forgiveness, but Beecher rebuffs him, refusing to have anything further to do with him unless he confesses his role in the attack to the authorities. Keller obviously enjoys the beating, but is briefly seen experiencing a moment of regret when he returns to his empty cell. Unbeknown to Beecher, however, Keller has betrayed him to Schillinger and the Aryans, who beat him so mercilessly that they break both his arms and legs. A mutual attraction instantly forms between them, and the two eventually exchange confessions of love. Schillinger arranges for Keller to meet Tobias Beecher, Schillinger's former sex slave, with the intent of gaining his trust and seducing him. Upon his arrival, Keller allies himself with the Aryan Brotherhood 'owing' the gang's leader, Vernon Schillinger, who protected him as a 17-year-old during a previous sentence, in exchange for sex. Death sentence was overturned in January 2003. Convicted in February 2002 - Murder in the 1st degree and is sentenced to Death. Convicted JFelony murder, two counts of attempted murder, assault with a deadly weapon, robbery, driving under the influence, reckless driving.

Oz season 4 full episodes