I don't know about the guy in that specific incident, but in my case he was apparently healthy with no health complications, having had regular checkups on top of the mandatory ones (to be able to frequent a gym). This is the scary part for me.
In his late 30s. If he was, say, in his 50s or 60s this wouldn't have weirded me out as much. Could have been an anatomical defect or something like that, not caught by the regular checkups? Who knows...
