Watch the FULL episode here: http://goo.gl/bon0pN
Part 3: http://goo.gl/c9a4bW
Part 4: http://goo.gl/IRDY4E
Part 5: http://goo.gl/fNlJYY
Part 6: http://goo.gl/UuIYiY
"20/20" reports on the explosive Tom Fallis murder trial in Colorado. Fallis was accused of murdering his wife Ashley after it was originally ruled a suicide in 2012. Ashley’s mother never believed her daughter would have killed herself and argued the police did not investigate properly because Tom Fallis worked for the county sheriff’s department. She doggedly got a local news reporter to investigate, who two and a half years later found people who came forward to say they had heard incriminating statements that night… leading to a new investigation and an indictment. ABC News Correspondent Ryan Smith has up to the minute interviews, Fallis’ law enforcement interrogation tapes and exclusive interviews with key members of the police department at the center of the investigation.