A Maine State Police trooper was killed while assisting a motorist in the breakdown lane on I-95 Wednesday morning.
Police have identified the fallen trooper as 31-year-old Detective Ben Campbell.
While Detective Campbell was waiting for another officer to arrive at the scene, two wheels separated from a tractor trailer passing the scene. One of the wheels hit the detective.
Police say the truck had moved over, or was in the process of moving over, at the time of the incident, according to WGME.