She had dated federal law enforcement officials before.
"Charlie McGonigal knew everybody in the national security and law enforcement world," Guerriero said, in an exclusive interview with Insider.
One law enforcement source estimated that McGonigal stood to make roughly $300,000 to $350,000 a year, including annual bonuses.
Former New York City Mayor Rudy Giuliani, whom she knew from law enforcement circles, let her stay in a guest bedroom.
During her relationship with McGonigal, Guerriero says, they never talked about politics.