A 19-year-old leader of an online extremist group has been sentenced to 40 years in federal prison. The individual was found guilty of racketeering and child sexual exploitation.

The sentencing was handed down on Wednesday. The group's ideology is described as nihilistic, and its goals included sowing social chaos.

Further details about the case are available from the source, including the nature of the group's activities and the extent of its online presence. The sentencing marks a significant outcome in the case, with the 19-year-old receiving a substantial prison term for their role in the group's exploits.