Til Death Do Us Part

After receiving a call about a car chase, police find a crashed motorcycle and Francis Hall beside her injured husband, Bill Hall Jr., who later dies in the hospital; the investigation into the crash reveals a story of love, infidelity and obsession.

Dr. Mark Wangler and his wife, Kathy, appear to be living the American dream, then a cold premeditated execution tears their family apart.

In Winona, Mo., Jason and Stephanie McClurg suffer a series of misfortunes putting their marriage under an enormous amount of pressure, then first responders find Stephanie dead in the couple's trailer.

In Newaygo County, Mich., Marty and Glenna Duram are found gunned down in their home; investigators find evidence of a troubled marriage at the heart of this crime as well as a pet parrot that repeats Marty's last words.