It appears that there is some confusion with my post. I guess I worded it wrong. Here's what one of the first responders had to say.
With the focus on the seriously injured Biden family, another firefighter and I attended to Mr. Dunn, who was seated in his truck. He was in shock, and had difficulty understanding me when I explained what had happened. He kept asking the same question over and over. "What am I doing here?" I placed a cervical collar around his neck and checked vital signs. A secondary survey revealed lacerations and contusions, but he was breathing, not bleeding badly and therefore was in no significant danger.
In regards to intoxication, there was no way to determine if Mr. Dunn had been drinking, since neither of the police officers had breathalyzers aboard their cruisers. His injuries were such that his demeanor was similar to that of someone in a stupor, but those of you who serve in emergency medicine know that such behavior is often presented by victims who are in shock, or perhaps even diabetic.
If Mr. Dunn was intoxicated, there was no way to determine that at the hospital either, since alcohol blood tests were not mandatory in 1972. The hospital records are missing, as well as the police reports. To be honest, those of us in fire-rescue here in Delaware assumed that Mr. Dunn had been drinking, based on comments made by police officers at the scene. And in the Delaware fire service, rumors travel from station to station like wildfire.