Former Castle Rock STEM School Teacher Pleads Guilty to Child Exploitation, Cybercrime

Tera Johnson-Swartz, 45, a former English teacher at STEM School Highlands Ranch and a 2025 Colorado Teacher of the Year finalist, pleaded guilty to two class-3 felony counts: sexual exploitation of a child and cybercrime. The plea resolves a case that sparked concern across Douglas County about student safety and the responsibilities of educators in positions of trust.

Prosecutors say Johnson-Swartz was arrested in February 2025 after investigators documented extensive messaging with a juvenile victim in an arrest affidavit. Allegations in the affidavit include repeated electronic contact and instances of direct physical interaction, including picking the student up from school. Initial charges filed earlier in 2025 had been broader, and prosecutors added a separate allegation in July 2025 that Johnson-Swartz violated a protection order.

The remaining charges to which Johnson-Swartz pleaded guilty are class-3 felonies under Colorado law. A sentencing hearing is scheduled for March 30, 2026, when a judge will determine penalties and any required registration or restrictions that follow a conviction. Court filings and the arrest affidavit supply the factual basis for the plea, and the case will proceed through the sentencing phase rather than a contested trial.

The case has local implications beyond one classroom. Johnson-Swartz’s profile as a Teacher of the Year finalist intensified community attention, raising questions about hiring practices, background screening, and monitoring of staff-student interactions. Parents, school employees, and elected school board members in Douglas County have a stake in whether district policies and safeguards sufficiently protect students and how allegations are reported and investigated.

Institutions that oversee K-12 education in the county will face pressure to explain their responses and to review protocols for educator conduct, digital communications, and enforcement of protection orders. Law enforcement and child-protection agencies also will be scrutinized on how quickly they acted after contacts were reported and how evidence was preserved.

For Castle Rock residents and families with students at area schools, the case is a reminder of the ongoing need for clear reporting channels and transparency from education officials. Community trust in classrooms depends on robust policies, routine training, and timely accountability when allegations surface. With sentencing set for late March, Douglas County leaders and school administrators should be prepared to answer questions about preventive steps and follow-through to ensure student safety goes beyond disciplinary outcomes.