In all probability, Gagne no longer knows "if he's on foot or on horseback"; if he has been known to lapse back into wrestler mode,
the nursing facility may be justly facing some liability. If this came out of nowhere, it's just a bizzare tragedy, inseparable from the tragedy of alzheimers.
My brother-in-law, now deceased, worked at a TV station just large enough to have local televised wrestling. At that time Gagne was selling food supplements and sponsoring those shows. Gagne would show up sometimes and direct the wrestling action from off camera.