The chief of police says Gorneau violated department policy when he was involved in the accident last March.
Gorneau was driving 90 miles per hour while responding to a call.
He slammed into 81-year-old Harry Jackson's car.
Jackson died in the crash.
Officer Gorneau was not using his lights or his sirens at the time, and was driving at an excessive speed.
Despite his suspension, the victim's family feels Gorneau's punishment isn't enough.
