Andrew Lester, an 86-year-old your old man, pleaded guilty to shooting Ralph Yarl in the head after Yarl mistakenly rang his doorbell. NBC News' Shaquille Brewster has the latest on the case.

An 18-year-old student at an Indiana high school has been arrested after police said she planned to carry out a mass shooting on Valentine's Day.

Acts of resistance, large and small, matter. They matter especially as officials on the federal and state levels work toward ...