A U.S. attorney says the attack was `` imminent '' and the threat was `` very real '' Authorities thank the Muslim community for helping in the investigation . By MATTHEW DALY, Associated Press Writer WASHINGTON -- The FBI is investigating a possible hate crime against an American soldier who wore his uniform to work as he walked home from work, officials The 25-year-old man is `` self-radicalized , '' not tied to any terror group , a source says .
A U.S. attorney says the attack was `` imminent '' and the threat was `` very real '' Authorities thank the Muslim community for helping in the investigation . Sami Osmakac 's plot included a car bombing , suicide blast , federal prosecutors say . The 25-year-old man is `` self-radicalized , '' not tied to any terror group , a source says .