>> reporter: michael dippolito, her husband of six months, gunned down in their townhouse. the cops were telling her, but she would not be allowed to go inside to see the body. >> i need you to go with these detectives okay? >> oh no. no. >> does he have enemies? is there anyone who would want to hurt him? >> oh no. no, no. >> if you want to help out your husband you need to go to the station and tell these gentlemen and tell us everything you know about who he knows and who he's connected to. >> reporter: the investigation was only minutes old and the officers told dalia they'd need her cooperation in understanding what had happened. at the police car sgt. ranzie talks to dalia dippolito. >> we're gonna do everything we can okay. so we need your help. we need to get your husband's killer ma'am. >> reporter: dalia was whisked off to the police station where she'd soon find out that the detectives thought they knew much more about the details of the crime than they were letting on. this case was about to get very complicated, oh yes. >> coming up -- the questions begin. it seems that undercover agents have their eyes and hidden