Erin Edwards was a well-loved and promising student at Boston University who was supposed to return this fall for her junior year. But all who knew her were shocked when last month she and her brother were shot and killed, apparently by their own mother, who then took her own life. Police have not named a motive, but the investigation is ongoing.

Jim Braude was joined by Zoe Greenberg, who has been reporting on the story for The Boston Globe.