WHAT THE CAMERA DIDN'T SEE

"20/20" Airs Friday, February 19 on ABC

It was a murder mystery that lingered for years. Nique Leili, a wife and mother, was found dead near her suburban home a week after going missing. Her family immediately suspected husband Matt, who filed for divorce within days of her disappearance. He claimed Nique was "crazy" and that she stormed off. Yet their two young daughters, now teenagers, steadfastly supported their father, even posting a long YouTube video defending him. Matt, who had installed 21 cameras and other surveillance devices in his home, always keeping a constant watch on the spouse he did not trust, refused to help police with their investigation. It took nearly four years for prosecutors to determine there was enough evidence to charge Matt and take the case to trial. Just two weeks ago, a jury decided Matt's fate. Jim Avila reports the twists and turns in a murder mystery that captivated an entire city and beyond. "20/20" airs on FRIDAY, FEBRUARY 19 (10:00 - 11:00 pm EST) on the ABC Television Network.

"20/20" is anchored by Elizabeth Vargas and David Muir. David Sloan is the senior executive producer.