Nancy Grace here for our partners at Azure Standard America's premier supplier of organic foods

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Thank you, azurestandard, for being our partner. I'm Cheryl McCollum, host of the brand new

co-case podcast, zone 7. We're going to be talking to family members, detectives, prosecutors,

and nationally recognized experts that are in my zone 7. The group of professionals that I've

called on to help me work hundreds of cases you've heard of and thousands you haven't. We are

going to solve these cases own air together. Listen to zone 7 on the iHeart Radio app,

the Apple Podcast app or wherever you listen to your favorite podcast.

Crime stories with Nancy Grace.

Tonight, investigators are pouring over evidence and surveillance footage to figure out the

major breakdown that allowed Jeffrey Epstein's apparent suicide in his jail cell.

ABC News has learned guards were supposed to check on the alleged sex trafficker every 30 minutes.

Sources say that protocol was not followed in the hours before he was discovered.

It really is an insane system on so many levels.

Attorney Bruce Parkett represents Epstein's former cellmate who roamed with Epstein less than three

weeks ago when he was found unresponsive with marks on his neck.

What the guards do and what they're supposed to do are almost always two different things.

So one has to wonder how it is that this man who just tried to take his own life by hanging

himself a few weeks ago was in a position to successfully hang himself.

Just six days after that first incident, Epstein was taken off suicide watch Saturday morning at

...