In response to:
"...such as the Bushmaster model used to kill 20 children and six adults in Newtown..."
There has been little evidence that this is true. Some sources say that the Bushmaster was in the trunk of the car and that handguns were used.
Governor Andrew Cuomo (D-NY) has just passed into law (in the words of the Associated Press) “the nation’s toughest gun restrictions” since the deadly massacre at Sandy Hook Elementary School:
Jumping out ahead of Washington, New York state enacted the nation's toughest gun restrictions Tuesday and the first since the Connecticut school massacre, including an expanded assault-weapon ban and background checks for buying ammunition.Democratic Gov. Andrew Cuomo signed the measure into law less than an hour after it won final passage in the Legislature, with supporters hailing it as a model for the nation and gun-rights activists condemning it...
Irrelevent. What's important here is that there MIGHT have been a Bushmaster in the area. So that way progs can use this incident to outlaw guns they don't like.