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Behind the scenes in Flagler Beach, Fla.

This was Tuesday's live blog. These posts were meant to coincide with the broadcast.

by Chris Hansen, Dateline correspondent

7:55 p.m.
Meet a the guy who thinks he's about to get away it, at least for a few minutes. Mohamed Abdalla walks into our hidden camera house oozing with confidence. Notice how relaxed he is talking with our actress posing as a young teen home alone. Even when I walk out to talk to him, he's got his story all set and he's sticking to it.

Abdalla tells me that he's in real estate and was driving through our area to check on a piece of property he owns. Along the way he notices that the space shuttle is blasting off from nearby Cape Kennedy and pulls over his car to watch. Just a short while earlier, we too had watch the spectacular nighttime launch.

What Abdalla isn't prepared for is that I have not only the transcripts of his sexually explicit conversation with a decoy posing as a 13-old-girl, but also naked photos of himself that he sent online. How do we know it is Abdalla in the photos? As you're about to see, a unique piece of jewelry in the picture matches one that is hanging around the 34-year-old man's neck. So much for the clever story.

8:16 p.m.
In a moment you're going to meet a 22-year-old college student and chemistry teacher named Deepak Bist. This guy drove four hours to get here and after reading his online chat with a decoy who said she was 13, I am wondering what he was thinking about during that long car ride. I guess you could argue that all of these guys should know better, but Bist actually talks about our investigations during his chat. He even tells the decoy he's watched Dateline's "To Catch A Predator" the evening before his chat. This doesn't seem to stop him from bringing a virtual sex kit to his underage liaison.

8:33 p.m.
We may be shooting in Florida, but on this night it is windy and cold. That doesn't stop a 24-year-old amateur boxer named David Wagner from showing up to meet a 13-year-old girl. The boxer starts to leave when he sees me walk into the room. But watch as he decides to come back and answer some questions. He asks me if this is an "open house" as if he were shopping for real estate. It's an open house all right…one in which 21 men would show up during four days last December.

8:46 p.m.
Towards the end of tonight's show, you're going to see a potential predator try to meet a teen in a location besides our hidden camera house. This is a challenge both logistically and technically. We set up several hidden cameras on the beach across the street from our house. The idea is to have a potential predator meet our decoy on the boardwalk connecting A1A and the beach. As you watch our next guest show up, see if you can figure out where we've hidden our cameras and where the Flagler Beach Police are hiding before the arrest.

8:57 p.m.
Next week, we tell you exactly where everything and everyone was and you'll see what happens when a member of law enforcement shows up in our investigation. It's an officer who may have more firepower than the Flagler Beach officers working in this investigation.