On Tuesday the greatest child pornography prosecution in history concluded with the sentencing of the Ukrainian child pornographer Maksym Shynkarenko to 30 years in prison. Shynkarenko, 35, of Kharkov, pled guilty to conducting a child exploitation enterprise after being extradited from Thailand in 2012. His demise helped to convict more than 600 American men who bought egregious images of child sexual abuse in 47 states (all but Wyoming, Vermont and Maine), including police officers and firefighters, teachers, counselors and scout leaders, construction workers and business executives, doctors, lawyers and the former head of the American Civil Liberties Union in Virginia.

“What we learned is that child predators are everywhere,” says Assistant U.S. Attorney Mark McCarren of New Jersey, who led the prosecution with his colleague Harvey Bartle IV.