Police Officer Carlos Puente-Morales and Police Officer Susan Farrell were killed when their patrol car was struck head-on by a wrong way driver on I-80, at mile marker 117.

They were transporting a prisoner from Council Bluffs back to Des Moines when the crash occurred. Both officers, the prisoner, and the driver of the wrong way vehicle were killed.

Officer Puente-Morales had served with the Des Moines Police Department for five months and had previously served with the Ottumwa Police Department. He was a member of the Army National Guard.