(Newser) – Here's a bit of irony: Chris Hansen, who makes a living exposing sexual predators in hidden camera stings, has been caught—on a hidden camera—cheating on his wife. The To Catch a Predator host has been seeing Kristyn Caddell for almost four months, sources tell the National Enquirer. Caddell, 30, is younger than Hansen by 21 years and works as a news anchor at a Florida NBC affiliate.

Hansen was filmed taking Caddell out to dinner at a Ritz-Carlton hotel and then spending the night at her apartment, the Daily Mail reports. Hansen has been investigating a disappearance in South Florida, conveniently enough, and a source says the pair first met at a Palm Beach lounge in March and spent the night together immediately. The Enquirer's sting apparently caught them leaving Caddell's apartment together in the morning, wearing clothes from the night before, with "disheveled" hair. (Read more Chris Hansen stories.)

