Former Black Panther leader Marshall "Eddie" Conway walked free Tuesday after spending four decades behind bars for killing a Baltimore police officer — making his one of the highest-profile cases affected by a high court decision that has cut short prison sentences for dozens of felons in recent years. ... Sager's son, who was 7 at the time of his father's death, said he was devastated. David Sager said he was warned of the outcome more than a month ago ... "My mother passed away two years ago, and in a way I'm glad that she's not around to see...