President-elect Donald Trump is suing the Des Moines Register for alleged election interference, according to the court filing. The lawsuit names the register and top pollster J. Ann Selzer over the newspaper's final presidential election poll.

Madison Police Chief Shon Barnes told CNN that investigators are looking into online posts and a possible manifesto that the shooter may have left behind, trying to determine what prompted her to kill herself after shooting a classmate and a teacher in a school classroom.

Russia opened an investigation on Tuesday into the killing of Lt. Gen. Igor Kirillov, who was chief of Russia's Nuclear, Biological, and Chemical Protection Troops.