1973
April 5, 1973
Motor Ofc. William P. Sniffen
CHP - Oakland 
Officer William P. Sniffen was pursuing a speeding motorist on the Nimitz Freeway when the vehicle rear-ended another car that was stopped for a previous collision and then burst into flames. Sniffen lost control and his motorcycle was thrown under the burning vehicle, killing the 31-year-old patrol officer almost instantly. Officer Sniffen was a seven-year member of the CHP and had served previously in San Leandro and Oakland.
May 16, 1973
James Howard Cassidy Jr.
Pearland Police Department, TX
Motorcycle Accident
June 17, 1973
Officer James Millard Cannon
Atlanta Police Department, GA
Officer Cannon was killed in a motorcycle accident while on patrol at Memorial Drive and Woods Street, SE. 
July 09, 1973
Motorcycle Officer John T. Lawler
Los Angeles Police Department, CA
Officer Lawler was killed in a motorcycle accident on a Freeway.
He had been with the agency for 13 years and is survived by his wife, five children, and two stepchildren. 
September 12, 1973
Police Officer John J. Bracken
Jersey City Police Department, NJ
Officer Bracken was killed when his police motorcycle was struck by a vehicle while he was on patrol.