Crime Beat: Season 3, Episode 3

3 - 3: The Big Lie to Die for

When a triple-murder nearly wipes out an entire family, police struggle to establish a motive. At the home, investigators discover a gruesome scene and identify an unexpected murder weapon -- a crossbow. They also meet the lone survivor who fought for his life and barely escaped. The mystery deepens when a suspicious package is discovered, and the killer's double-life is revealed.