On Thursday August 18th, the groundbreaking experiment, 60 days in returns.

For the first time ever, all seven participants entering the jail are former inmates.

These seven ex-convicts are on a mission to get to the bottom of what's happening in this jail

and bring it to light. If they can't do this, no one can. The single most important thing all

seven of them need to remember is expose the truth. Not your cover. 60 days in returns for a new

season Thursday August 18th only on A&E. Watch live, stream on the A&E app or on demand.

This episode contains descriptions of violence. Use your best judgment.

Children, people with disabilities, and the elderly. There's some of the most vulnerable members

of our society. Fortunately, a lot of people go out of their way to protect and care for them.

Unfortunately, they're also the most susceptible to manipulation, and there are some people who take

full advantage of that. In this case, an elderly man, Bruce Stark, was living alone. But he was

taken good care of by his neighbors, who often looked in on him to make sure he was doing okay.

So when Bruce went missing, his neighbors were appropriately concerned. The community began

to search for their missing neighbor. Four days later, they found him at the bottom of a well.

Bruce had been murdered. From A&E, this is Cold Case Files. I'm Brooke, and here's the

lottable Bill Curtis with a classic case. The well. He lived in there. It's a small place,

and you see for this window is open here. That's to kitchen. There's old...

On a hill in New Mexico, it's an old trailer. Inside it lives an old man.

He was a lonely guy, and a friendly guy. I don't think he actually met anybody that he didn't like.

Very friendly, very open. Always wanting to visit and talk.

Ken Hamill and Bob Nelson are Bruce Stark's neighbors, and make a point of checking in on the 72-year-old.

On the morning of September 11th, Bob Nelson stops by.

...