TROY, Mo.— A former St. Charles County middle school teacher has been sentenced to 20 years in prison for attempting to get boys to engage in sexually explicit conducted for him to videotape.
Matthew Hansen, 40, was sentenced Thursday in federal court for eight counts of attempted production of child porn.
Hansen had already been sentenced in state court to seven years in prison in September for secretly videotaping boys as they undressed in a camp shower.
The state and federal sentences will run concurrently.
Hansen is a former math teacher at West Middle School in the Fort Zumwalt district.
Authorities say the crimes happened between 2007 and 2012. School officials have cited evidence that Hansen videotaped at least 80 boys at an outdoor education camp in Cuivre River State Park in Lincoln County.