A study by Chinese geologists shows the mountain where North Korea has conducted five successive nuclear bomb tests has collapsed.
A witness said a man dressed as a ninja was trying to get inside a courthouse in Davenport, Iowa. Police said he was armed with some sort of blunt object.
The suspected Golden State Killer became less prolific but deadlier after losing his job as a police officer.
The Supreme Court is saving one of its biggest cases for last, weighing President Donald Trump's ban on travelers from several mostly Muslim countries.