I've actually known about this since middle school! There was some group activity when I was in the 7th grade where we were like, mock investing or some-such. Our team names had to add up to 100, and my fellating lover on the team discovered that little bit of trivia, and thus our investing partnership was dubbed morbid angel. heavy metal finance, fuck yeah.
of course, that was several years before i knew who they were or listened to them. i'm pretty sure he'd heard of them through some magazine or another, but he may have had domination which was just released around that time.