New Year's Evil - 20/20 Special.

The story of what happens when Shele Covlin — a 47-year-old mother of two and successful banker — is found dead in her bathtub in her luxury apartment on the Upper West Side of Manhattan, it seems at first like a tragic accident. But family members quickly grow suspicious of her estranged husband, Rod Covlin, especially after authorities exhume her body and come to a shocking conclusion: Shele was strangled.