Make sure the scene is reasonably safe for you to intervene; pay attention to ABCs, especially bleeding (be sure to scan the entire body); do not attempt to alter the victim,s body position (there are likely to be significant fractures, particularly of the neck and spinal column, and movement is not good before stabilization). If the patient is conscious, find out who his doctor is, what meds he might be taking;connect with him and offer realistic reassurance.

There should be some very good comments on this - good problem. How do we know the other victim is expired? Be sure you are not making a bad assumption on that person...