Federal authorities said Timothy Watson, 36, was part of a domestic terror investigation because he was preparing an attack on a hospital.
Watson was reportedly upset with the government's actions toward the spread of coronavirus and was planning a bombing at a Kansas City-area hospital that was providing critical care during the current coronavirus pandemic.
The FBI also said Watson was a potentially violent extremist who was spurred by racist and anti-governmental rhetoric.
According to an FBI press release, Watson "decided to accelerate his plan to use a vehicle-born improvised explosive device in an attempt to cause severe harm and mass casualties."
Federal agents attempted to arrest Watson when he arrived at a location to get what he believed to be a truck bomb.
Wilson was armed at the time and shots were fired. No one else was injured in the shooting.