Police say millionaire Ben Novack, Jr. may have been conducting an extramarital affair before he was killed.

Mae, the daughter of Novack's wife, claims he was having an affair with a younger woman and that her mother, Narcy Novak, was infuriated by it. According to police reports, the Novacks' marriage was turbulent.

Authorities say Narcy Novak has been a suspect in the case since she failed a lie detector test. Ben Novack's alleged mistress was not at the hotel at the time of the killing and has been cooperating with authorities, police say.