
The U.S. Post Office in Kiel has been honored for a fallen officer.
It is now known as the Trooper Trevor J. Casper Post Office Building after a bill passed by Sixth District Congressman Glenn Grothman in 2024 renamed it.
Grothman was in Kiel along with Casper’s family and members of the Wisconsin State Patrol for a dedication ceremony on Friday (August 15th).
Trevor grew up in Kiel and was an active wrestler, soccer player, and youth coach.
After he got his degree in criminal justice, he entered the Wisconsin State Patrol Academy and graduated in 2014.
In 2015 on his first solo patrol shift, Trevor was shot and by a robbery suspect he was following.
He was able to return fire and killed the suspect before he died from a gunshot wound. Grothman says that day, Trevor embodied the highest ideals of the uniform he was wearing.
“He faced danger head on, acted to protect others, and gave his life in service to his fellow communities,” he told the crowd. “I can’t think of a better role model for the young citizens of Kiel and the area.”
Other speakers, including Fond du Lac District Attorney Eric Toney, said that he couldn’t think of a better way to recognize Trooper Casper.
“This remaining is a small step in saying thank you for sharing Trevor with us and thank you for allowing us to honor his legacy,” Toney commented.
Toney also said without a doubt that the suspect would have hurt more people if Trooper Casper didn’t take action that day.
Praise for the trooper also came from Former Wisconsin State Patrol Superintendent Anthony Burrell, who was a Captain when Trevor joined WSP.
He called Casper quiet, a hard worker, and someone you would want on a patrol.
“He was that gentleman that would come out and do his job and he wanted to do his job,” he explained. “He was a public servant through and through and a true hero.”
Burrell says his sacrifice on that fateful day in 2015 exemplified the highest examples of law enforcement.
He noted, “While his time with us was far too short, the impact he made, the example he set, and the legacy he left behind will forever resonate with the Wisconsin State Patrol and the communities he served.”
After the speakers finished, a black and silver plaque was unveiled forever, naming the post office after Trevor.
Trooper Casper is still the youngest law enforcement officer in Wisconsin to die in the line of duty.
He had only been on the force for eight months.












