IE 11 is not supported. For an optimal experience visit our site on another browser.

Exclusive Dateline Preview: Someone Was Watching

01:39

When a captivating Russian woman is found dead in her garage, detectives in Frisco, Texas uncover a series of suspects – all of them connected in different ways to her complicated and secretive life. Josh Mankiewicz reports Friday, December 9, at 9/8c.