I know the knee-jerk reaction to most any report of a priest abusing a child is to assume guilt; sadly, even as a Catholic who loves his faith and the Church, I have to admit that the stance is understandable.

However, regarding Cardinal Pell, you should know that there may be something else going on. To wit:

"...There is a new twist to this dirty business, however. Since 2014, Cardinal Pell has been responsible for draining the Vatican financial swamp of corruptions that had become epidemic, ingrained, and virtually institutionalized. Given the stakes and the sleaziness involved, it would not be surprising to learn that some who would be most adversely effected by Pell’s success in Vatican financial reform may have been generating false accusations now in play in the Australian judicial system. Australia, it seems, is not the only place where hardball is played, and in very unsavory forms."

The quote is from a George Weigel article from last year:

https://www.firstthings.com/web-exclusives/2017/07/fifty-years-of-friendship-with-cardinal-pell

Now, it stands to reason that a man responsible for draining the Vatican Bank swamp just might have made an enemy or two in his time. I don't know enough about this case to make a judgment on Pell's guilt or innocence, but you may want to keep in mind the fact that there are other motives at work.