Death Bed confessions.. the last vestige of the gutless glory seeker..
... But just to play the other side you had a day and 1/2 of Van Gogh telling several people that he in fact shot himself. (on his death bed no less).
The consequences for anyone shooting Van Gogh would have been pretty bad once the guy becomes one of the famous painters ever, so there is some logic about keeping silent about it. And the logic to the story is that Van Gogh did not want to get kids into trouble. But, it is after all, an unverifiable story. Van Gogh could have shot himself, suicides happen all the time.
I read Guy Gibson's book:
Enemy Coast ahead. Guy Gibson was the squadron commander for the dambuster raids and a national hero. The official story is that on his last bombing raid he was shot down by the Germans. But, after reading the account of Bernard McCormack, I believe it could have been a friendly fire incident. It was dark, the radio was out on Guy Gibson's plane, he joined a bomber formation on the way back, in the dark his plane had the silhouette of a Ju88, and a rear tail gunner knew it was not a Blenheim, and shot it down. No one wanted to admit it, nether Bomber Harris in the preface of the book, Enemy Coast Ahead, or the guy who shot Guy Gibson down, till his death.
From Wiki:
https://en.wikipedia.org/wiki/Guy_Gibson
In October 2011, the Daily Mail published an article asserting that the cause of Gibson's death may have been a friendly fire incident. Rear gunner Sergeant Bernard McCormack flew on the raid. Before he died in 1992, he left a taped confession with his wife that he had seen what he thought was a Ju 88 flying near his plane and had fired 600 rounds at it when in the vicinity of Steenbergen. He saw the plane go down. During the debriefing after the raid he explained what had happened and was asked again about the incident by an Intelligence Officer the following day. McCormack came to believe the plane shot down belonged to Gibson.[168]
Before you say that was absurd, a WW2 veteran I worked with, told me of a unfriendly fire incident by his squadron of B17's. High Command became aware of flights not going over target, but rather flying to a nice safe area of Germany and dropping their bombs there, and then heading home. Higher Command wanted Squadron Commanders to check up on their men, to see that they were going to where they were supposed to be going. The squadron commander of bud's unit followed up in a Mosquito bomber, which was a very fast plane. As he approached the formation head on, his men started shooting at him. Assuming they did not recognize his plane, the squadron commander turned his plane so the roundels and silhouette were very clear in the daylight. That should have worked except for the fact, he was not popular and the maneuver made it easy for his men to shoot the plane down. Now that did not go anywhere in any book or report, but things like that happened. The US was experiencing 65,000 casualties a month during the war, with 20,000 of that as dead men, so a missing squadron commander or two was just one of those things. The British were losing a similar number of men.