This is a vile act far past the other willful vandalism I had posted.
The perpetrators planned prepared and with great effort attacked a public icon tree to bring grief to all. What ever could be the misguided cause they follow.
Dismay after historic tree hacked
Police probe 'sickening' attack on historic tree - Just In (Australian Broadcasting Corporation)
Update almost a year on heres some pictures
I can't say a great deal of recovery seen I'm sure they got it in best hands but I was expecting to see some cambium regrowth or its bubbling development or a bark graft attempt but saw no evidence of that. The trees heath & vigour seems Ok not great but as not observed over the last year its hard to tell.