>> The suspect in a series of bomb blasts across New York and New Jersey had been on the FBI's radar before. Ahmad Khan Rahami's father had called law enforcement on his own son two years ago. The father on Tuesday speaking briefly with reporters.>> I called the FBI two years ago.
>> Reuters national security correspondent Mark Hosenball.>> Rahami's father did in fact call the FBI in and said something to the effect that I'm very worried my son is hanging out with persons he described as militants or terrorists. And then two weeks later, literally two weeks later, as the story was explained to me, the father called the FBI back and said, sorry.
I didn't really mean that, he was hanging out at clubs with criminals. And so the FBI looked at these allegations and concluded this guy was not a terrorist. There's no substance to this. And then they shut the case. So no thorough investigation or full scale investigation on this was ever initiated.
>> FBI agents on Monday scoured Rahami's residence in Elizabeth, New Jersey, where he lived with his family above a fried chicken restaurant the family operated. Rahami was apprehended later by police in Linden, New Jersey, who found him sleeping against the door of a bar. New York City Police Commissioner, James O'Neill, telling CBS This Morning he's encouraged Rahami was found alone.
>> I think it's a good sign that we found him in a doorway, that he was found in a doorway. And hopefully that means he had nowhere to go, so that's a pretty good sign.>> The Afghan born naturalized Americans foreign trips now under scrutiny. He reportedly traveled to Afghanistan and Pakistan several times.
US security confirming that Rahami underwent extra screening after returning from abroad. He was cleared on every occasion. Rahami is currently facing five charges of attempted murder related to his shootout with police.