The three teens police believe killed a high school student in Loudoun County last month all entered the U.S. as illegal immigrant children, were released into society and skipped their deportation court hearings, a top senator revealed Tuesday as he demanded answers. “Had these suspects appeared for their mandatory court date, they would have likely not had the opportunity to murder a 17-year-old high school student from Loudoun County,” Sen. Charles E. Grassley, chairman of the Senate Judiciary Committee, said in a letter to Homeland Security Secretary Jeh Johnson. The Iowa Republican said his committee has received information that the...