A tourist boat capsized and sank in a sudden storm on a lake in Missouri, leaving 17 dead, including some children, authorities said Friday after divers recovered the bodies of the last people who were missing.

A former student armed with an AR-15 rifle opened fire at a Florida high school on Wednesday, killing at least 17 people, officials said, in a harrowing shooting spree that saw terrified students hiding in closets and under desks as they texted for help.