Two men were sentenced to life in prison for murdering a 19-year-old man as part of an Athens “gang war” in 2022, according ...

SÃO PAULO—A Brazilian gang founded in the country’s violent prisons is fast becoming one of the world’s biggest criminal organizations, reshaping global cocaine flows from South America to Europe’s ...

Law enforcement agencies estimate that tens of thousands of gangs operate across the United States today. These groups range from street gangs and prison gangs to organized criminal networks.

Anyone who has followed the devastating violence in California’s prisons knows that gang rivalries trigger a lot of the bloodshed. So it stood to reason that if the authorities could get members to ...