No, it's never been discussed on here before. I don't think it has ever been stated why he had it. At least not in anything that I've ever read, but I am not a die hard researcher either though, so maybe someone else will know. But, I am just guessing it is probably something he just liked and thought looked cool.
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"I’ll see you in Heaven if you make the list"
Zachary Patrick Bowen (March 7, 1995-November 5, 2021).
I miss you little brother.