Although the above stated is true, at this point in time I'm sensing (JMO) that BS & KM's main thrill is with the manhunt (and their fantasy war games) and not with murder. Athough the murders of LF and CD sound horrific and seem premeditated, its possible their intent was to rob them and/or steal their van but things went downhill when LF (a big, athletic guy) presumably fought to defend his property and girlfriend. Similarly with the murder of LD, the teens are only being charged with second degree murder which I assume means LD somehow died during a carjacking (maybe run over by his own car). Again, murder may not have been their first priority. Also, note that these teens have had interactions with people at cafes, gas stations, and truck stops, and maybe even traveled with someone as hitchhikers, but haven't been randomly shooting every person who crosses their path.
I hope I'm right in predicting there will be no more bodies, at least not of innocent victims.