9 votes New York City paid McKinsey millions to stem jail violence. Instead, violence soared. Posted December 12, 2019 by hungariantoast Tags: business, usa.ny.nyc, prisons, criminal justice, crime, mckinsey, violence, government.local, author.ian macdougall, source.propublica, long read https://www.propublica.org/article/new-york-city-paid-mckinsey-millions-to-stem-jail-violence-instead-violence-soared