It's a case from 1962 and my friend remembers hearing a podcast on the case which included the detail of him going to the therapist. Basically he went out rafting a mile out to sea with 4 friends, he returned alone, saying a mythological dragon appeared and killed them one by one, giving a very detailed story. A body washed ashore a week later with no injuries. He apparently died from drowning.

My friend says they remember hearing a podcast saying how later in his life he sought out therapy, which helped to convince him there was no dragon. But I'm unsure of what this means, does it mean there was objectively no dragon there that day? I'm confused by the sentance my friend gave me, does it mean he was using the dragon to cover up trauma?

For those curious the boys name was Edward McCleary and he died in 2016.