ABC News 
Wednesday, November 16, 2011
ABC News has learned authorities are increasingly concerned that a man sought in connection with a bizarre shooting incident on the Washington Mall last week may pose a threat to President Obama.
The Secret Service now suspects that a bullet fired in this incident may have hit the White House after a bullet round was found in a White House window, though the round had not yet been conclusively linked to the incident. The round was stopped by ballistic glass behind the historic exterior glass, while an additional round has been found on the exterior of the White House.
Police believe the suspect, 21-year-old Oscar Ramiro Ortega of Idaho, is mentally ill. Ortega has an extensive record, ranging from domestic violence to drug charges. Sources say a police investigation has uncovered evidence suggesting Ortega has a fixation on the White House.
At 9:30 p.m. Friday, police received reports of shots fired in the bustling area of 16th street and Constitution Ave.
Full story here.