On Thursday evening, June 11, 1998, Police Sergeant Richard J. Asten was killed when he was struck by a stolen vehicle being pursued by another officer. Asten was on duty in northwest Kansas City when he learned of the pursuit and realized that the vehicle was headed his way. After parking in a median, he stepped out of his car to deploy Astop sticks intended to disable the vehicle. At that moment the vehicle approached and the driver swerved to strike Asten, who died as a result of the collision. Officer Asten was forty-six years old and a thirteen-year veteran of the Kansas City Police Department.