Question – ‘Oz’ And Ethics

In the episode of Oz that screened on SBS last night Keller confessed to ‘ordering the hit’ on Schillinger’s son. The order was made by Beecher, in retaliation for Schillinger’s son, Hank, kidnapping and murdering Beecher’s son, whom Schillinger suspected when Hank’s body was discovered. Schillinger’s suspicion led him to order the murder of all of Beecher’s family, which commenced with the stabbing of Beecher’s brother, and was only averted by Keller’s confession to a crime that he did not commit.

Was it noble for Keller to confess to a crime, that he did not commit, to prevent the retaliatory murder of innocents? Or should Beecher have been made to pay for his crime?