A former Rock Canyon and Legend High School teacher and coach was arrested on suspicion of sexual exploitation of a child and indecent exposure, the Douglas County Sheriff’s Office said Wednesday. Christen Cassic, 55, of Parker was arrested Tuesday, the sheriff’s office said in a post on X. Douglas County School District told families at Rock Canyon and Legend high schools about the arrest Wednesday, according to an email from Rock Canyon Principal Andy Abner. District officials have “no information or knowledge suggesting any DCSD student was involved in this matter,” Abner wrote. Cassic started working at Legend High School as an assistant coach in 2015, according to the district.