I wasn't trying to ridicule you - just wondering whether you actually truly believe that an aggressive tackle is "football's equivalent of manslaughter"?
Also, if you've played the game for years you will no doubt have seen hundreds of very similar tackles - probably much worse ones in fact, if you played at amateur level - that didn't result in serious injury. My problem with all of this is you seem to be singling Marker out as some sort of extreme hacker, when in truth most teams had at least one player of his type in those days. Exhibit A; Glenn Keeley, who was worshipped at Ewood for years. Was he a 'shithouse player' as well?