It ordered state courts to review such cases .
In 2012 the United States Supreme Court ruled that persons who were minors at the time of a crime for which they were convicted , could not be sentenced to life imprisonment without parole , and applied this retroactively .
United States Supreme Court ordered state courts to review such cases .
In 2012 the United States Supreme Court ruled that persons who were minors at the time of a crime for which they were convicted , could not be sentenced to life imprisonment without parole , and applied this retroactively .