Another Pit turns on its owner. The clues are all there no matter how much they try to hide them.
Yes - or, as in this case, the owner’s relative, loved one, father, mother, wife, husband, child, grandmother, grandfather, friend, or just visitor to the home.
I believe the proportion of deadly attacks of the above to the whole is about one-third.
Call it 33%. I can pull the statistic if you wish - it varies a bit year to year, but overall, it’s a working number.
It’s not just a clue. Your intuition is correct.
The statistics are here:
https://www.nationalpitbullvictimawareness.org/
and here: https://www.animals24-7.org/2017/08/08/pit-stop-archive/
and here: https://www.dogsbite.org/dog-bite-statistics-quick-statistics.php