WASHINGTON — The Supreme Court is leaving in place a ruling by New Jersey’s highest court that helped prompt new legislation prohibiting mandatory life without parole for juveniles in the state.The court declined today to take up the case involving Ricky Zuber and James Comer, both of whom were convicted of serious crimes as juveniles and sentenced to lengthy prison terms for multiple offenses.New Jersey’s highest court ruled earlier this year that judges need to take additional care in sentencing …