A bride-to-be is tragically murdered just two days before her wedding while police uncover her fiancé's shocking double life.

A Baton Rouge, Louisiana, teacher disappears, and her 3-year-old daughter is the only eyewitness; could a child be the key to cracking the case?

A look into the case of Lori Vallow just after a guilty verdict in her trial for conspiring to murder her fourth husband.

A bride-to-be and her mother are murdered just weeks before the wedding; the investigation leads police to a bizarre trail of clues, including taunting letters from the killer.