Boston Marathon Bombing
On April 15, 2013, two pressure cooker bombs exploded during the Boston Marathon at 2:49 pm EDT, killing 3 people and injuring an estimated 264 others. The bombs exploded about 12 seconds and 210 yards (190 m) apart, near the finish line on Boylston Street.The Federal Bureau of Investigation (FBI) took over the investigation, and on April 18, released photographs and surveillance video of two suspects. The suspects were identified later that day as Chechen brothers Dzhokhar and Tamerlan Tsarnaev. Shortly after the FBI released the images, the suspects allegedly killed an MIT police officer, carjacked an SUV, and initiated an exchange of gunfire with the police in Watertown, Massachusetts.