Law & Society

Aaron Alexis, the Navy Yard shooter responsible for killing 12 people last week, lied about a previous arrest and failed to disclose thousands of dollars in debts when he applied for a security clearance in the Navy. Federal investigators had dismissed the omissions, all the while deleting any reference to his use of a gun in the same arrest.

The investigation into the terrorist attack perpetrated by the Somali Islamist group al-Shabaab over the weekend, has been joined by forensic experts from the U.S. Germany, UK, Canada and Interpol. The experts have begun combing the Westgate mall for DNA and ballistic clues

Chicago police have arrested four men in connection with a shooting at a basketball court at the Back of the Yards neighborhood last week that wounded 13 people, including a 3-year-old boy,