In Michigan, a 15-year-old student opened fire at Oxford High School near Detroit, killing three students and injuring another eight. The three students who were fatally shot were aged 14, 16 and 17. The suspect is now in custody, but no motives for the rampage have been released. It was the 651st mass shooting in the U.S. this year, according to the Gun Violence Archive. In Washington, D.C., Connecticut Senator Chris Murphy blasted his Republican colleagues on the Senate floor for blocking gun control legislation.

Sen. Chris Murphy: “At the very moment that moms and dads in Michigan were being told that their kids weren’t coming home because they were shot at school, due to a country that has accepted gun violence due to Republicans’ fealty to the gun lobby. Do not lecture us about the sanctity, the importance of life, when 100 people every single day are losing their lives to guns, when kids go to school fearful that they won’t return home because a classmate will turn a gun on them, when it is in our control whether this happens.”

The father of the shooter had bought the gun he used several days before. In other gun control news, a federal court in California upheld the state’s ban on high-capacity magazines Tuesday. Further challenges to the California law could see the case brought before the U.S. Supreme Court.