For 12 years, Kathi Spiars gave her heart to a man she first knew as Steve Marcum. She was intrigued by his mysterious past – a past that included time spent as a hitman for the CIA. But then, his stories began to unravel, revealing a lifetime of lies. Even his name was a fraud. Steve Marcum was really Eric Wright. But when Kathi was finally forced to confront the truth about the man she loved, she began a frightening journey, digging into his dark past. Correspondent Susan Spencer reports.