Federal prosecutors say four members of a neo-Nazi group ran a child exploitation ring that coerced minors into producing sadistic, abusive pornography.

A captain from Hillsborough County Fire Rescue was arrested Thursday on multiple counts of child pornography, according to officials.

A 43-year-old woman, 43-year-old man and 47-year-old woman from Greenfield were all charged, while a 43-year-old Morristown ...