Investigators are taking a harder look at Marilou Danley and what she might have known about the attack at a country music festival Sunday, with Clark County Sheriff Joseph Lombardo naming her a “person of interest” and saying the FBI is bringing her back to the U.S. for questioning. Danley, 62, was out the country at the time of the shooting and in the Philippines on Tuesday. “We anticipate some information from her shortly,” Lombardo said.