Triumphant Clues | "48 Hours" Full Episodes

Mark Castellano, Michelle Warner's boyfriend and father of her son, initially claimed she left after a fight. However, his story was inconsistent, and his behavior, including removing hard drives from his computers and asking police if he should appear on Dr. Phil, raised suspicion. Detectives used a psychological approach during interrogation, appealing to his love for his son, Kaden, to elicit a confession. Castellano admitted to killing Michelle and disposing of her body. The body's location in a remote West Texas oil field was pinpointed using FaceTime, with Castellano guiding officers in real-time.

Castellano's shifting narratives, his question to police about appearing on Dr. Phil, the missing hard drives, Detective Waters' psychological interrogation strategy, and the use of FaceTime to locate the body.

Kathy McNottton was found stabbed to death, with her husband Alec McNottton claiming a loving marriage and a solid alibi. However, investigators discovered hidden disposable cameras, notes, and a secretly recorded argument in Kathy's closet. These revealed a history of physical abuse, financial disputes, and threats from Alec. Cell phone tower data contradicted Alec's alibi, placing him near the crime scene when he claimed to be an hour away. Testimony from his three previous ex-wives further established a pattern of violence and control, ultimately leading to his murder conviction.

Kathy's hidden photos showing bruises, her notes detailing threats and financial issues, Alec's secretly recorded argument where Kathy mentions pictures and affidavits, cell phone tower data disproving Alec's alibi, and consistent testimonies from Alec's three ex-wives regarding his abusive behavior.

Angie Dodge was brutally murdered in 1996, with a pristine DNA sample left at the scene. Christopher Tap was wrongfully convicted based on a coerced confession after extensive interrogation, despite his DNA not matching the killer's. For decades, Angie's mother, Carol Dodge, tirelessly pursued justice. In 2014, a familial DNA search using a public database (ancestry.com) led to Michael Usri Jr. as a suspect, though he was later cleared. Years later, advanced genetic genealogy on a different public database (Jed Match) identified a distant relative, leading investigators to Brian Drips, who lived across the street from Angie. Drips' DNA matched the crime scene, leading to his arrest and the exoneration of Chris Tap after 20 years.

The pristine DNA profile from the crime scene, Chris Tap's coerced confession, the Idaho Innocence Project's work, the familial DNA search on ancestry.com leading to Michael Usri Sr. and Jr., the subsequent advanced genetic genealogy on Jed Match identifying Brian Drips' family tree, Drips' proximity to Angie's apartment, and his confession after his DNA matched the crime scene.