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Three women murdered their loved ones through manipulation and betrayal, leading to shocking acts of violence. Cases include Paige Conley's attack on her mother, Becky Reed's killing of Lyndsey, and Katie Coursey's fatal actions against a caregiver.

Deadly Women S06 E07 investigates cases of mothers who killed their children, highlighting psychological factors such as delusion, control, and obsession. The series explores crimes from various regions and eras, analyzing the motivations behind these acts of violence.

In 2015, 15-year-old Haley Smith died after being struck by a dark truck. The case went cold until 2016, when tips linked the crime to Tiffany Higginbotham, who was in prison for a 2015 hit-and-run. Police used interrogation techniques, including the Reid method, to unravel the mystery, ultimately identifying Higginbotham as the killer through evidence and interviews.

Angie was hospitalized with a mysterious illness and later suffered a fatal seizure, prompting an investigation into potential poisoning. Police discovered her husband, Jim, had ordered arsenic and potassium cyanide, along with evidence of affairs and suspicious behavior, leading to his arrest and interrogation for the poisoning.

Angie's poisoning led to her hospitalization and eventual death, sparking a police investigation into her family's home. Authorities interviewed suspects, including her husband Jim, who faced interrogation techniques to uncover his alleged role in the crime, revealing manipulative behavior and hidden secrets.

In July 2010, Brittany Tavar vanished from her Florida home days after a court date. Her dogs were found 300 miles away in South Carolina, prompting an investigation. Suspects included her former friends, later cleared by alibi, and her roommate Joe Roberts, who also disappeared. Police tracked her credit card and vehicle westward, leading to Roberts' arrest in Seattle. Interrogation revealed his role in her murder, solving the case.

On June 3, 2014, 19-year-old Lea Porter vanished after visiting Christopher Waide in Westminster, Colorado. Her mother reported her missing, prompting an investigation. Waide, last seen with Lea, was interrogated using techniques like the Reid method. Detectives uncovered his role in her murder, revealing a hidden psychopath who snapped, leaving lingering questions about the case.

During a Halloween festival, José opened fire, killing one and injuring five. Investigators faced challenges due to the chaotic setting and lack of evidence. A cellmate's wiretap confession led to his arrest, with police using interrogation techniques to confirm his guilt and resolve the case.

In June 2013, a deputy discovered smoldering Cadillac remains with human teeth and bones on a logging road, leading to the identification of 54-year-old Edward Mullener as the victim. Investigators linked him to a love triangle involving Antoinette Heart, her boyfriend Justin Boyles, and Charles Massey, whose home concealed ammunition. Police interrogations, including the Reid technique, revealed a complex murder case involving a potential psychopathic mastermind.

A cold case involving the murder of 23-year-old Rachael, who was assaulted, stabbed, and burned alive, remains unsolved for nearly 30 years until DNA genealogy led detectives to her grandfather, Dan. After interviews and forensic analysis, Dan confessed to the crime, revealing a shocking true crime story.

A narcissistic killer's murder of insurance executive Bob went unsolved for years, with his widow and secret gay lover under scrutiny. DNA testing later linked Paul, a previously overlooked suspect, to the crime, though his motive remains unclear, leaving the case unresolved despite forensic advances.

In 2013, Lee County police discovered Michael McMullen's body in a Florida home, where he had been suffocated. Investigators interviewed three adults present at the time—Douglas Garrigus, Gale Watkins, and Elaine Trainor—using interrogation techniques and a polygraph to unravel a complex murder mystery involving a family's dark secrets.