Maryville Police Department, Tennessee
End of Watch Saturday, February 21, 1981
Add to My HeroesJohn Michael Callahan, II
Police Officer John Callahan was killed when his motorcycle was struck by a vehicle being operated by an intoxicated driver.
He was on patrol and was approaching the intersection of Highway 73 and Merritt Road when the vehicle struck him.
The driver was arrested at the scene. He was convicted of vehicular homicide and sentenced to 10 years in prison and 20 years probation.
Officer Callahan had served with the Maryville Police Department for five years. He was survived by his twin sons.
Bio
- Age 29
- Tour 5 years
- Badge Not available
Incident Details
- Cause Vehicular assault
- Weapon Automobile; Alcohol involved
- Offender Convicted of vehicular homicide
Most Recent Reflection
View all 27 ReflectionsAt 10 years old I was in a traffic accident. Everyone got out but my dress was caught and I was still in the car. Officer Callahan climbed in crawling over glass to talk to me and get me out of the car. I have NEVER forgotten you and NEVER will. Thank you for your kindness. It has been a lifetime blessing.
Amy Taylor
Maryville Resident
February 21, 2023
Recent LODD Deaths

Sergeant Joseph Anthony Azcona
Newark Police Division, NJ
EOW: March 8, 2025

Police Officer Felicia Dee Reilly
Saint Paul Police Department, MN
EOW: March 1, 2025

Deputy Sergeant Martin Shields, Jr.
Hinds County Sheriff's Office, MS
EOW: February 23, 2025

Police Officer Christopher M. L. Reese
Virginia Beach Police Department, VA
EOW: February 22, 2025

Police Officer Cameron Robert Girvin
Virginia Beach Police Department, VA
EOW: February 22, 2025

Patrolman Andrew William Duarte
West York Borough Police Department, PA
EOW: February 22, 2025

Trooper Kyle McAcy
Nebraska State Patrol, NE
EOW: February 17, 2025

Police Officer Jeremy R. Labonte
Roswell Police Department, GA
EOW: February 7, 2025

Officer Jason Roscow
North Las Vegas Police Department, NV
EOW: February 4, 2025