Sean Ellis was convicted of murdering Boston Police Detective John J. Mulligan in 1993. In 2015, Ellis was released on bail after 22 years behind bars. Friday morning, the Supreme Judicial Court of Massachusetts concluded Ellis was unfairly tried and entitled to a new trial.
Nancy Gertner, former Massachusetts federal judge, senior lecturer on law at Harvard Law School and WBUR legal analyst.
This segment aired on September 9, 2016.