An off-duty Boston police officer shot and killed a man who was allegedly wielding a knife inside a restaurant near Back Bay’s Copley Square Saturday, officials said. Two people were chased ...

Now known as the Ayer Mansion, the single-family home has 23 bedrooms and 12 baths throughout its five stories, and also features rooftop panoramic views of Back Bay and the Boston skyline.

In videos on social media, the crowd chanted, “We don’t want your Nazi cars, let’s send Elon back to Mars ... Shua Sanchez, an event organizer and Boston resident, said the movement ...