ALBAWABA- A man was shot and killed by the United States Secret Service after opening fire near a security checkpoint outside the White House on Saturday evening, leaving one bystander seriously wounded, authorities said. The shooting occurred shortly after 6 p.m. near the intersection of 17th Street and Pennsylvania Avenue NW, along the western perimeter of the White House complex. Officials said the suspect, identified as 21-year-old Nasire “Nasir” Best ...