So if they are still being secretive, the case must not be so open and shut. I wonder if they are trying to locate the supplier to prosecute. I hope they are. Most likely they stopped somewhere along the way to buy or consume, and police probably are trying to put a case together. I wonder what could be the cause of death for the one without drugs in the system? Of course the final tox might show both had them. If someone is dying of an OD could they do harm to someone else? Perhaps they called their supplier for help and he drove up there and killed the living one to shut that person up. Sorry for my wild speculation, but i wish more pushers would be prosecuted for murder.
The vehicle was pulled off the side of the road far enough to not get hit and the hazards were turned on shows presence of mind when the car was pulled off the road. May have stopped to consume or help another person.