HBK inheritance?

"Shawn Michaels announces that he's coming back at the Royal Rumble. Lucky group of reporters who got to attend that press conference. Also, apparently at this time Shawn inherited $2.5 million from a fan and tried to keep it quiet. That's a lot of blow money. No wonder he was able to stay wasted for four years straight"

I'd never heard of this. Did some random fan really leave HBK a couple million dollars? What's the story behind that?

​I'm just repeating what Dave was saying in the Observer at the time, no idea if it was ever followed up on, to be honest.  ​