>> reporter: we're on the beat with james scoppa., determined to crack a big case for atlantic city's new prosecutor. >> i was happy when prosecutor tyner came in and he allowed us to work on the case and investigate it like we believed it should be. meanwhile kim and her attorneys keep their eye on what they believe is the prize -- jim kauffman. using his pictures on social media as incentive. >> i would get a picture of jim kauffman and carole at the final four. you know, smiling. i'd put it on my brother's screen. so that when he came in in the morning, that would be the first thing he'd see, jim kauffman and carole. saying, "yeah, so what? i killed her. what are you gonna do about it?" >> reporter: but there's an unexpected canary in kauffman's coal mine. its coming in the form of a tip from the fbi. the feds believe kauffman may be involved in another unrelated crime. >> lo and behold, another investigation related to insurance fraud. his role as a doctor, comes up so investigators get a warrant to search his office. >> so they