3 children and a teacher killed in elementary school shooting in Bend, Oregon

What to know about the shooting

• Four people were killed, including children, in a shooting today at Silver Rail Elementary School in Bend, Oregon, authorities said.
• The children were 5, 8 and 11 years old. An adult teacher was also killed.
• The suspect, who police said was a 16-year-old Bend resident armed with a long gun, gained entrance into the school by shooting through locked doors, officials said.
• A good Samaritan shot and killed the 16-year-old, according to authorities, who credited that person with preventing further loss.
• Two other people, a 7-year-old and another teacher, were critically injured.
• Bend is a city about 3 ½ hours southeast of Portland.