As police search for anyone who may have had motive to kill Rob Cantor, they discover a surprising secret about his girlfriend.

A Manhattan man convicted of killing his estranged wife's lover will be the subject of NBC's Thursday "Dateline" episode. Sui Kam "Tony" Tung was convicted in July for a second time for the killing of ...

On Dec. 15, 2015, after a two-month trial and four days of deliberation, a New Jersey jury found Sui Kam “Tony” Tung guilty in the brutal murder of his ex-wife’s new partner, Robert Cantor. Cantor’s ...