October 6, 2026
WARREN COUNTY, Iowa - Shortly after 3:30 p.m. on October 5, 2026, multiple law enforcement agencies, including the Warren County Sheriff’s Office, West Des Moines Police Department, and the Iowa State Patrol responded to reports of shots fired on Interstate 35 near the 56-mile marker. Upon arrival, officers found an adult female suffering from an apparent gunshot wound, and multiple vehicles struck by apparent gunfire. Officers provided aid to the woman, who was transported to a local hospital. Her injuries do not appear to be life-threatening.
Near the 62-mile marker, officers located Andrew Tanaka, 27, of West Des Moines after his vehicle struck another and became disabled. Tanaka was on the shoulder of the interstate, armed with a handgun. The officers were able to take Tanaka into custody without further incident. He is in the Warren County Jail facing four counts of Attempted Murder.
The shootings and investigation required the interstate to be closed for several hours to ensure the safety of the public and the investigators processing the scene.
The Warren County Sheriff’s Office and the Iowa Division of Criminal Investigation are continuing the investigation. If you have information that may assist with the investigation, please contact the Warren County Sheriff’s Office at 515-690-9216.
A criminal charge is merely an accusation, and the defendant is presumed innocent until and unless proven guilty.
Complaint and Affidavit (4) (199.36 KB) .pdf
ABOUT THE IOWA DEPARTMENT OF PUBLIC SAFETY
The Iowa Department of Public Safety (DPS) is the largest law enforcement agency in the state. It includes six divisions and several bureaus, all working together with local, state and federal government agencies and the private sector, to keep Iowa a safe place by following our core values: leadership, integrity, professionalism, courtesy, service and protection. Divisions within the Iowa DPS: Iowa Division of Criminal Investigation, Iowa Division of Narcotics Enforcement, Iowa State Patrol, Iowa State Fire Marshal Division, Iowa Division of Intelligence and Fusion Center, and Administrative Services Division. The Department of Public Safety is led by the Commissioner who is appointed by the Governor.
Iowa Department of Public Safety
215 E 7th St
Des Moines IA 50319
https://dps.iowa.gov