Killer Cases - Season 4 - Eps 4: Death By Antifreeze
Outwardly, Mark Jensen seemed to be a mild-mannered, loving husband -- grieving over the early December 1998 suicide death of his wife, Julie, who was found by their two young sons. But when Wisconsin police found traces of antifreeze in her autopsy, they started to question what was really going on at home. They soon discover that Mark moved another woman in a month after his wife's death.
About Killer Cases

Title: Killer Cases
First Air Date: 2020-12-04
Last Air Date: 2024-12-20
Status: Returning Series
Rating: 7.8/10 (from 9 votes)
Language: EN
Seasons: 6
Total Episodes: 58
Network: A&E True Crime Network A&E Crime Central
Genres: Crime, Documentary
Production Companies: Law & Crime Productions, Ellsworth Productions, True Crime Network, Cineflix Rights
Synopsis
All the emotion, drama and suspense of America's most memorable murder trials are captured. Produced by an Emmy-award winning team, each episode takes viewers through the criminal justice process, from the crime to the investigation to the courtroom testimony and finally, the verdict. It's a journey through the criminal justice process that gives viewers an inside look at real cases like never before.
Cast

Brian Ross
Self - Narrator (voice)