Wealth, family, and tragedy collide in this gripping episode of "48 Hours." The Hargan family, seemingly living the perfect life in their Virginia mansion, is shattered by a devastating double murder-suicide. But were Pamela and Helen's deaths truly a suicide pact, or is there a darker, more sinister truth hidden beneath the surface of their seemingly idyllic existence? Dive into the investigation as detectives unravel the secrets of the Hargan household and uncover a story of shocking betrayal and unexpected motives. New episodes every Wednesday!