Yeah, that's a rough one. I heard the news yesterday and was going to post something as well. He had some heart issues last year and unfortunately he didn't come back from this heart episode.
I took many hockey road trips with him...multiple UMD trips, St Louis F4, multiple Final 5, etc.
I unfortunately hadn't spoken to him for quite a few years other than a few posts on FB, but I will always remember him as a kind, funny guy and a great fellow Sioux fan.
RIP MNS.