Investigation into woman's murder exposes an elaborate stalking plot

An elaborate stalking plot involving threatening texts and emails led to a woman's murder, highlighting vulnerabilities in personal cybersecurity and digital stalking prevention.

Kristil Krug told police in Broomfield, Colorado, that she and her husband, Dan Krug, were receiving threatening texts and emails from an ex-boyfriend. Two months later she was dead, but her alleged stalker had an alibi.