'Pure evil': Ex-migrant arrested for murdering DHS employee found dead in his prison cell

A naturalized citizen from the U.K. who allegedly went on a shooting spree in Georgia and murdered a DHS employee walking her dog has been found dead in his prison cell while awaiting trial.Olaolukitan Adon Abel, 26, was arrested after a witness saw him last week standing over the body of Lauren Bullis, an auditor with the Department of Homeland Security.Police said the killing was the third murderous attack Adon Abel had committed in a series that included the lethal shooting of a woman and ano...