It’s liberating. A 2012 state appeals court ruling on outdated jury instructions helped 142 felons go free, decades after they were put behind bars for committing murder and other violent crimes. The ex-convicts’ adjustment to an unfamiliar world has been jarring. But “the Unger family” — named for the still-incarcerated man whose case set the other inmates free — formed a tight bond. None has violated parole or been sent back to prison, raising questions that challenge our preconceptions about justice and the American way.