48 Hours: Season 36, Episode 22

36 - 22: The Monica Sementilli Affair

Well-known beauty executive Fabio Sementilli was sitting by his swimming pool when he was brutally stabbed to death. His body was discovered by his then 16-year-old daughter Isabella on Jan. 23, 2017. Prosecutors say his wife, Monica Sementilli, was secretly having an affair with racquetball instructor Robert Baker. Baker defends Monica Sementilli.