On Friday, March 17, 2023, at 4:03pm, law enforcement responded to 618 West Boone Street after receiving a 911 call reporting someone had been injured at this location and was not breathing. Upon arrival, officers found a 27-year-old male deceased. The victim has been identified as Isaiah Montell Forest of Marshalltown. On March 18, an autopsy of the victim was performed by the Iowa Office of the State Medical Examiner. The autopsy revealed the victim died as the result of a gunshot wound.
On Sunday, March 19, law enforcement arrested Amarrion Demeir Isom, age 20. Mr. Isom is currently being held in the Marshall County Jail. Mr. Isom has been charged with Murder in the First Degree (Class A Felony).
At this time, there is no evidence or information available that would suggest a threat to the general public. While the investigation does continue, it is important to note that law enforcement is not looking for any other suspects. The safety of our community is always our top priority. We will provide additional updates about this investigation as new information becomes available.
The Iowa Division of Criminal Investigation and the Marshall County Attorney’s Office are assisting the Marshalltown Police Department with this investigation. Anyone with information about this incident is asked to contact the Marshalltown Police Department at 641.754.5729. Tips may also be submitted anonymously by calling Marshall County Crime Stoppers at 641.753.1234 or via text by texting the word “marshall” followed by the tip to CRIMES (274637). Tips may also be submitted online at www.marshallcountycs.com.
On March 17, the Marshalltown Police Department was assisted at the Boone Street address by the Iowa Division of Criminal Investigation Crime Scene Team, the Marshall County 911 Communications Center, the Marshall County Sheriff’s Office, the Marshalltown Fire Department and the Unity Point Ambulance Service.
(A criminal charge is merely an accusation and the defendant is presumed innocent until and unless proven guilty.)
For more information, please contact Police Chief Michael Tupper by calling 641.754.5771 or via email at mtupper@marshalltown-ia.gov.