BREAKING: London terror attack: Police say 4 dead, including 1 police officer; 20 injured

Having trouble viewing this email? | View it in your browser   London police believe there was only 1 attacker in the terror attack. For more updates, follow USA TODAY. FOR MORE ON THIS STORY, GO TO:   USATODAY.COM     Help | Advertise | Home Delivery | Privacy Policy - Your California Privacy Rights     © 2017 USA TODAY, a division of Gannett Satellite Information Network, LLC. 7950 Jones Branch Drive, McLean, VA 22108