Separately on Tuesday, another official said that when Mr. Rahami was captured during a shootout with the police, he was carrying a notebook that contained writings sympathetic to jihadist causes.
In one section of the book, which was pierced by a bullethole and covered in blood, Mr. Rahami wrote of “killing the kuffar,” or unbeliever, according to the official, who agreed to speak about the investigation only on the condition of anonymity....
September 20, 2016
"Two years before Ahmad Khan Rahami went on a bombing rampage in New York and New Jersey, his father told the police that the son was a terrorist..."
"... prompting a review by federal agents, according to two senior law enforcement officials."