1 - Footprint in the dust

An arrest is finally made five years after a mother of four disappeared while she was close to her apartment in Montana.

2 - The Agent's Wife

Authorities take two years and three trials to solve the shooting death of the wife of an FBI agent in the kitchen of her family's Virginia home.

3 - Twisted Tale

When a woman returns two days after being reported abducted, authorities believe it's a hoax until a similar crime forces them to take another look; twenty-seven women who have accused Bill Cosby of assault get together to share their stories.

4 - The Cosby Accusers Speak

Twenty-seven women who have accused Bill Cosby of assault get together to share their stories.

5 - The Confession

Ten years after a 16-year-old boy confessed to a double murder and was sentenced to life in prison, a local businessman tries to prove the confession was coerced and the teen was wrongfully convicted.

6 - The Tipping Point

The case of Johnny Hincapie, whose conviction for the 1990 murder of a Utah tourist in New York -- a case that represented a tipping point in the city's law enforcement -- was overturned after 25 years.

7 - Without a Trace

A 29-year-old woman goes missing.

8 - One Spring Night

Natalie Morales speaks to the mother of the teenage sexual assault victim from St. Paul's School; new details from both sides of the case, Owen Labrie's conviction and sentencing, and interviews with Labrie's friends and legal team.

9 - Under a Full Moon

When detectives track down the killer of a Las Vegas cocktail waitress and mother, it becomes clear that the investigation has just begun.

10 - Terror in Paris

13 - Something Sweet

The five-year investigation into the death of a retired corrections officer, who was killed by antifreeze poisoning, reveals multiple suspects.

38 - Tangled

After a sudden marriage creates tension between two families, a murder exposes secrets, lies and a long-buried mystery.

48 - Rear Window

When a woman is found dead inside her Jacksonville Beach apartment, police hope they’ll quickly find her killer. Instead, it takes more than a year to solve their case. Andrea Canning reports.

49 - The Feud

A man dies in a shooting incident after tempers flare in a confrontation in Montana's Glacier National Park.

56 - Family Secrets

California, 2011: Chris Northam Sr. was shot twice in the warehouse of his business. The suspect list is large and includes angry investors, disgruntled employees and ex-lovers. The case stalls. Then someone comes forward with a bombshell.