Is it OK to profit from the death of a fallen hero

I have a book idea that I want to follow through with, but the main character would be a former mentor of mine who committed suicide by skydiving. I knew the person in the final days of his military career. He was a former special forces soldier, with years of experience teaching skydiving. Just a few months after his retirement from the military, he was found dead. During a dive his main chute failed to open and his backup chute had not even been touched. My book would feature him as the main character, deciding to live instead, but with personal drive to clean up the world in his own peculiar way. I'm not sure that taking his name and characteristics is ethical, because the things I would be writing would be fiction.

galen.patterson303 wants your take on these quandrees too.

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