Talk to literally anyone who lived there for more than a few years and you'll heard endless stories of crimes against them or their friends that go unreported. I can give you a handful of them myself, and seems like basically everyone I knew who lived there had their own.
Over the years I've read story after story of horrific crimes committed there by 10, 20, 30-time repeat offenders. You can look no further than Boudin's own words and actions.
To try and claim otherwise is basically politically motivated gaslighting. Walk down any number of streets, talk to locals, it's clear as day to anyone with a brain and eyes that there's something uniquely wrong with that city.