Gunman who opened fire near White House was known to Secret Service

Suspect who died after exchanging fire with agents had tried to enter the complex last summer, records showA gunman who opened fire outside the White House on Saturday before he was shot by federal agents was already known to the US Secret Service, court records show.The man, 21, was taken to a nearby hospital, before he was later pronounced dead. He had previously tried to enter the complex, according to an affidav…