Cathryn Mellender played a key role in the Chandler Halderson case, which is the focus of ABC's 20/20 episode Road Map To Murder, airing May 30, 2025.

When Chandler Halderson's lies about attending college and being offered a SpaceX job were about to be exposed, prosecutors ...

A location-tracking feature on Snapchat was instrumental in solving a double murder case in Wisconsin involving Chandler ...

The upcoming episode of 20/20 is all set to uncover the harrowing case of Chandler Halderson, who brutally murdered and dismembered both his parents, allegedly because he had made up many lies and did ...

Cathryn Mellender, cleared by police, showed detectives a screenshot of a map that placed her boyfriend, Chandler Halderson, ...

Bart and Krista Halderson were the proud parents ... friends and family and eventually got a break. Chandler's girlfriend, Cathryn "Cat" Mellender, allowed investigators to download data from ...

MADISON (WKOW) — Chandler Halderson's former girlfriend, Cathryn Mellender, took the stand Thursday afternoon. Halderson is charged in the death's of his parents, Bart and Krista Halderson after he ...

CHANDLER HALDERSON (doorbell camera video ... Gravatt described "Chaz" as popular with women. College student Cathryn Mellender, known as "Cat," was his longtime girlfriend.

Cat Mellender says she had a good relationship with the Haldersons after dating Chandler since 2019, and was even talking about planning a “girls’ trip” with Krista Halderson at one point.