Baby Doe, a toddler who was found washed ashore Deer Island in Massachusetts in a trash bag, is identified as Bella Bond.
A 28-year-old white supremacist hijacks a truck in Winthrop, Massachusetts, before crashing into an unoccupied home, causing extensive damage. He then fails to hijack another vehicle, then opening fire on black bystanders, killing a woman and a man. Police exchange gunfire with the attacker, killing him at the scene. White supremacist rhetoric is found in the gunman's handwriting.
Governor Charlie Baker announces new restrictions for the state, including a stay-at-home order, curfew for businesses, reduction of indoor gatherings, and a tighter mask mandate. The restrictions will take effect on November 6.
A Federal District Judge for Eastern Pennsylvania temporarily enjoins the Trump administration from implementing new rules that change the Obamacare contraceptive mandate. California, Delaware, Maryland, Massachusetts, New York, Virginia and Washington have also sued the federal government over the rules.
A jury acquits the former head of the now-closed Massachusetts pharmacy, New England Compounding Center, Barry Cadden, on 25 counts of second-degree murder but convicts him of racketeering and other crimes in a meningitis outbreak that was traced to fungus-contaminated drugs and killed 64 people across the country. Cadden disregarded sanitary conditions to boost production and make more money.
The first penis transplant in the United States is performed successfully at the Massachusetts General Hospital (MGH) in Boston, Massachusetts. Doctors call the operation "a surgical milestone". The patient, 64-year-old Thomas Manning from Halifax, Massachusetts, is the third man worldwide to have had the experimental surgery performed.
Former New England Patriots tight end Aaron Hernandez is formally charged with murder in the US state of Massachusetts more than a week after the body of former semi-professional American football player Odin Lloyd is found near his home.
Shortly after officials announce that they have lost track of the suspect and lifted the lockdown, a tip leads police to the back yard of a home in the Boston suburb of Watertown, Massachusetts, where the second suspect is captured after an exchange of gunfire and a brief standoff.
Voters in the states of Colorado and Washington approve the legalization of recreational use of marijuana in voter ballot initiatives, while the state of Massachusetts approves a referendum legalizing the use of medical marijuana.