The facts of Susan communicating to the gas station that she was having car problems and the observations of the mechanic discussing problems with the petcock plug of the radiator, that would suggest that someone was intentionally sabotaging Susan’s car to make it overheat and cause her to pull over. This would coincide with the mystery suspect and car arriving at the gas station while Susan was having car problems in the middle of a blizzard.
The description of the suspect vehicle being a “muscle car” with mag wheels, in combination with knowledge on how to cause Susan’s car to overheat, would suggest the suspect was a gearhead.
It’s likely he would be known in the area and there might have been other girls approached, followed or had communication from someone matching this description and car. We need to make sure this case gets with people who might have been around in this part of Minnesota in 1988!
