Surely he’s gotta be charged here in MA with illegal possession of a firearm, with its mandatory one-year in jail. Plus, hit-and-run, leaving the scene of an accident (running over his brother)...
Maybe that's what the "one count of malicious destruction of property (hijacked car) resulting in death" is for. I'm saying that sarcastically because they also shot and killed an MIT police officer, as well as injured another police officer, so where are the charges for that, or for the three deaths as a result of their terrorist activities, and the multitude of injuries that could or have led to death. So far he's only been charged with using a weapon of mass destruction, not the deaths, injuries it caused, nor for the other bombs the police discovered. Seems to me there's a whole lot of charges that are missing.
A smart prosecutor will hold charges in reserve, just in case he gets acquitted by an OJ jury. Failing to get a conviction of this guy would be career-ending for a prosecutor.