Stillwater Oklahoma Logo
Search

News Flash

ARSON SUSPECT ARRESTED

Police Department News Posted on November 10, 2025

(STILLWATER, OK) – On Monday, November 10, 2025, at 8:47 a.m., Stillwater Police Officers responded to 1815 N. Boomer regarding an assault and battery that just occurred. Officers were informed that Cassidy Lyss was the same individual involved in a robbery earlier this morning; and made statements about burning down the building.

When officers attempted to contact Lyss at the apartment, Lyss refused to come out and barricaded inside. The Stillwater Multi-Jurisdictional Special Operations Team (SOT) was activated to assist. Throughout the incident, Lyss repeatedly stated an intention to burn down the building.

Officers quickly began evacuating nearby apartments for safety. While attempting to communicate with Lyss, officers observed smoke coming from the unit. Lyss was then seen attempting to break out a bedroom window to escape the fire. Members of the SOT assisted by breaking the window and pulling Lyss out safely. Lyss was taken into custody without further incident.

Stillwater Fire Department was on scene and quickly extinguished the fire. Damage was contained to Lyss’s apartment, with smoke damage affecting adjacent units. No injuries were reported.
Lyss was transported to the SPD jail.

This is an arrest, not a conviction.

Cassidy Mal Lyss

Cassidy Mal Lyss, 35, of Stillwater

CHARGES
  • Arson - First Degree
  • Assault and Battery
  • Obstructing Officer
  • Robbery – First Degree
  • Threaten to Perform Act of Violence

###


  1. City of Stillwater Logo

Contact Us

  1. 723 S. Lewis Street
    Stillwater, OK 74074

    Phone: (405) 372-0025

    Mon - Thu: 7:30 am - 5:30 pm
    Friday: 7:30 am - 11:30 am

Government Websites by CivicPlus®
Arrow Left Arrow Right
Slideshow Left Arrow Slideshow Right Arrow