Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: (CNN)The father of an Ohio man arrested Wednesday for allegedly plotting to attack the U.S. Capitol says his son could never have carried out the plan. "He's a big mama's boy, you know. His best friend is his kitty cat," John Cornell told CNN's "Anderson Cooper 360." "There's no way he could have carried out any kind of terrorist plot," the father said. "I think Chris was coerced into a lot of this." Christopher Lee Cornell, 20, came to the FBI's attention several months ago for alarming social media posts in which he talked about his support for violent jihad, according to a criminal complaint. He allegedly wrote under the alias Raheel Mahrus Ubaydah.Father of suspect says he doesn't think his son "would hurt a fly"A source says the plan posed no threat to lawmakers; the complaint said it was in its late stagesChristopher Lee Cornell, 20, allegedly aligned himself with ISIS 
 Question:He did not think he would receive "specific authorization to conduct a terrorist attack in the United States, but stated that he wanted to go forward with violent jihad and opined that this would be their way of supporting ISIL," the complaint said, using another name for _.

ISIS