As I said, I'm not sure the filmmakers got everything right, but it did seem to be quite well researched. You should check it out.. (It's an interesting movie in any case.) As I recall, in the film Patton's personal driver crashed into an Army truck that had been diverted into the opposite lane near a blocked intersection. Now the filmmakers could have just made all this up, but assuming that it corresponds even roughly with the facts, in order for the accident to be a murder, either:
1. Patton's driver would have had to be corrupted, or
2. The person diverting traffic would have had to know that Patton's vehicle was approaching, or
3. The occupants of the truck would have had to want Patton dead and be able to time his arrival at the intersection.
I'll let you do the background research. I imagine the books discussed in this thread all cover this incident.
"Bringing this poignant story to light at this time, after a quarter of a century, is impelled by a recent rumor that there was something sinister about Patton's fatal accident. These accounts vary, in minor ways, but all are similar in two key respects: They are devoid of details or particulars regarding the nature and purpose of the reputed mystery; at the same time, the inference is pronounced that in some manner Patton was the victim of a dastardly plot to kill him."
"The stories are wholly untrue, They are entirely without foundation or a scintilla of evidence in the emphatic opinion of those closest and dearest to Patton. These include his late wife, who was with him throughout the 12 days he fought a losing struggle for life; his long-time chief of staff and close, friend, Lt. General Hobart R. Gay, who was with him at file time of the accident; Patton's two surviving children, Brig. General George S. Patton Jr., Assistant Commandant of the Armor School, and Ruth Ellen Totten, widow of an artillery brigadier. Also, Horace L. Woodring, driver of Patton's car, and Robert Thompson, driver of the truck into which Patton's sedan crashed."
Just where, how, and why the rumor got started is as baffling as the tale itself. Inquiries about the source invariably bring vague and ambiguous high-level answers, ... -" Robert S. Allen, General Patton's chief of combat intelligence