Waterloo Police continue to investigate the shooting that occurred in and around 501 W. 4th Street, in Waterloo Iowa, where at least 12 people were injured.   As of today, a 22 year old male and 28 year old female died as a result of this incident.   Two victims are at the University of Iowa Hospital and a Clinic in Iowa City receiving treatment ,while the remaining victims who suffered from a variety of injuries from glass, falling/trampling, and gunshot wounds were released.

We have completed the crime scene processing at 501 W. 4th Street and surrounding area and our investigators obtained and served several court orders, one of which has resulted in the arrest of Sir Frank Nelson III, 25 b/m, Waterloo, IA.   Nelson was arrested as a result of unrelated warrants, is a felon, and was found in illegal possession of firearm.

The investigation into this matter is ongoing.    We continue to seek out, and speak with witnesses to this matter.  We are asking for anyone who was in/ around 501 W. 4th Street at the time of this incident to contact Waterloo Police at 319-291-4340 Option 3/Investigations.

Please note: If anyone is in possession of any digital media (including photos, cell phone video, social media posts) that may assist us in investigating this matter contact either contact us, or upload it to the following site provided by The Axon Company.


We appreciate the assistance we have received from our local, state and federal partners and continue to work diligently alongside them to resolve this incident.

A Criminal Charge is merely an accusation, and a defendant is presumed innocent until and unless proven guilty.

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Press Release Contacts

Public Information Officer 
Major Joe Leibold
Investigations Division

Waterloo Police Department
715 Mulberry Street
Waterloo, Iowa 50703

After 4 p.m. and on Weekends,
Please contact the On-Duty
Watch Commander at 319-291-4340 option 2