A San Antonio-based member of an extremist group was sentenced Wednesday to 40 years in prison and lifetime supervised release for racketeering activity and the sexual exploitation of children, according to a news release.

Alexis Aldair Chavez, 19, pleaded guilty to one count of racketeering, one count of distribution of child pornography and one count of possession of child pornography in December 2025, federal authorities said.

According to court documents, Chavez was connected to "764," a criminal organization that engaged in the possession, production and distribution of child sexual abuse material along with murder and other criminal offenses.