Wrongful death lawsuit filed a year after deadly Glendale police shooting

What We Know Now: In a statement released on Jan. 7, 2026, a law firm named Romanucci & Blandin announced that they have filed a lawsuit on Dec. 31, 2025 at the U.S. District Court in the District of Arizona.

Officials with the law firm said the suit was filed on behalf of Siebeck's brother and mother. It names the City of Glendale and two men - Joshua Anderkin and Juan Gonzales - as defendants. Anderkin was a sergeant at the time of the shooting, while Gonzales was an officer at the time.

Learn more about the lawsuit and Dillon from Kenneth Wong for FOX10 Phoenix.