Trenton Miller Arrested in Alta Home Invasion, Impersonating Officer, Assaulting Occupant

The Buena Vista County Sheriff’s Office arrested 26-year-old Trenton Miller after an alleged late-night home invasion in Alta in which authorities say Miller purported to be an undercover Storm Lake police officer, brandished a handgun, assaulted a male occupant and took an ex-wife’s cellphone.

The sheriff’s office reports the incident occurred late the night of March 6, 2026, in a residence inside Alta city limits. Investigators describe the entry as a break-in motivated by an attempt to recover a cellphone belonging to the suspect’s ex-wife, according to police summary material accompanying the arrest.

Sheriff’s investigators allege Miller assaulted a male occupant during the encounter, with one blotter line specifically stating the suspect pistol-whipped the Alta man after impersonating a Storm Lake Police Department officer. The allegations include both the display of a handgun and physical assault; the arrest announcement and police listing identify the item taken as the ex-wife’s cellphone.

Following the arrest, a judge signed off on the Buena Vista County Sheriff’s Office request to search a red Chevy Trailblazer tied to the investigation. The court authorization for that vehicle search was noted in the same law-enforcement listings that announced the arrest, but the search-warrant text, the judge’s name and any inventory from the search have not been published in the materials released so far.

The arrested man is identified by name and age in sheriff office material as Trenton Miller, 26. Local police and court listings that circulated with the arrest description refer to him as an Ida Grove man; a separate listing on the same police blotter page described an Altoona man arrested for impersonating a Storm Lake police officer, creating a discrepancy in hometown description that has not been resolved in available records.

As of March 8, 2026, formal charging documents, bond information and an arraignment date were not included in the materials released alongside the arrest notice and vehicle-warrant entry. The sheriff’s office has linked the arrest and the red Chevy Trailblazer search to the same investigation but has not publicly provided the affidavit or the statutory counts filed against Miller.

Buena Vista County court filings and the search-warrant affidavit for the red Chevy Trailblazer are expected to provide the next public details: the precise charges, any evidence recovered, and scheduling for arraignment. The sheriff’s office and Storm Lake Police Department have been identified in the case narrative; residents seeking official updates should monitor Buena Vista County court dockets for the forthcoming charging documents.