I'm not sure people outside of Greater Boston would care, but those of us who do live there probably find it exceedingly strange that this occurred in Brookline of all places.

Nothing yet, but the timing is oddly coincidental to the shooting that occurred a Brown University a few days ago. Probably nothing there but who knows.

We have no info but he was the department head of the MIT PSFC. It's easy to imagine a deranged individual picking a high profile target by browsing MIT's website. Or it was a domestic dispute or road rage or any number of things that would drive someone to shoot someone in their home.

We have no information and can only speculate.

Looking at a map and and it seems relatively close to Brown(i'm not American , maybe these are very far apart when you are actually there), and that shooter hasn't been caught.