A link to an article about pit bulls, but nothing about
statistics?
In general, almost all dogs don't kill people. But of the dogs that do, they are, in super-majority, pit bulls. Rottweilers and German Shepards take it to 90+%. I've only been attacked twice, by German Shepards, as a kid. A friend of mine back in the day had a sister that was seriously mauled while babysitting a kid in a house with a pit bull.
I've learned in my anecdotal world that animals often behave in a manner based on how well they are or aren't loved. But then there is also the issue of facial ticks or whatever, that could set a dog off.
So you want a pit bull... the liability is yours. And there should be liability insurance involved, directly related to how well animal control knows your dog (ie, they don't know, low premiums / they are very well versed in your dogs existence, high premiums.) Granted, asshole pet owners will likely not pay for the insurance, so that probably won't help. So maybe just grind asshole pet owners into rendered mulch.