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Donald Mayer

Case from Waukesha, WI dated Feb 28, 2025

Victim Details

Donald Mayer

Male

White / Caucasian

Waukesha

WI

2025-02-28

51

Donald

Mayer

06/23/2026

Case Description

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In a quiet Waukesha, Wisconsin neighborhood, concerns for a family's welfare grew after two weeks of silence. Donald Mayer, a 51-year-old Caucasian male, and his wife, Tatiana Casap, had not been seen or heard from, and their garbage cans remained by the curb. The unease turned to dread when Donald’s mother received a call from Waukesha West High School, informing her that her 17-year-old step-grandson, Nikita Casap, had been absent from school for two weeks. This prompted her to request a pol ...
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Links to Additional Sources (13)

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  • ABC News: Wisconsin teen allegedly killed parents in extremist plot to assassinate Trump, FBI says
  • WISN: Teen charged with stealing car of parents found dead in Waukesha home
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    Forum Posts (2)

    Has anyone else seen the information about the camera memory card found with Nikita? I can't get ove... ...Read More
    05/22/2025
    I’ve been following this case closely, and I can’t stop thinking about the eerie detail of the c... ...Read More
    05/02/2025
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