Wisconsin teacher accused of kissing student now suspected of abusing boy she nannied
Authorities and court records say Abigail Faust, 24, allegedly began a sexual relationship with a long‑time babysitting charge that overlapped with alleged abuse of a fifth‑grade student.
A Wisconsin elementary school teacher already charged in an incident involving a fifth‑grade student is now under investigation for allegedly sexually abusing a second victim — a teenage boy she had babysat for years, authorities and court records show.
Abigail Faust, 24, who taught fifth grade at River Crest Elementary School, is accused of beginning a sexual relationship with the boy late last year shortly after he turned 15, according to St. Croix County investigators and court documents obtained by KARE 11. The boy, whom the records describe as now 16, had been in the care of Faust’s family employers since 2021. The parents who hired Faust later contacted the family of the other alleged victim before reporting concerns to authorities, the documents say.
Prosecutors say Faust was arrested after an incident in which she kissed a fifth‑grade student at River Crest Elementary. Following that arrest, court filings allege she admitted to authorities that she had engaged in a separate inappropriate relationship with the boy she had been hired to babysit and that she had told him she loved him. The filings quote Faust as saying she knew the relationship was "bad" and that she felt "grossed out" by the conduct.
The records further assert that Faust and the teenage boy discussed being in an exclusive relationship and talked about having children someday. Investigators are treating the matter as an ongoing criminal investigation, and additional details on potential charges beyond the initial arrest have not been publicly released.
St. Croix County Public Safety is listed in court documents as handling aspects of the inquiry. The agency and local prosecutors have not publicly detailed the full scope of the probe or confirmed whether more victims have been identified. The parents who employed Faust contacted the family of the fifth‑grade student before either family went to law enforcement, according to the court materials.
Faust’s arrest on the school‑related incident prompted school and police involvement; school officials have not issued a detailed public statement about personnel matters. Prosecutors said in filings that statements and digital records collected during the investigation informed their view that the babysitting relationship and the school incident overlapped in time. The district attorney’s office has not announced formal charges tied to the second alleged victim in public court dockets made available as of this report.
Allegations of sexual misconduct by educators and caregivers typically prompt criminal investigations and can lead to charges ranging from sexual assault to misconduct in office, depending on the facts and local statutes. Prosecutors and investigators rely on victim statements, witness accounts and digital evidence when developing cases. Child protective and criminal proceedings are often handled concurrently when the alleged conduct involves minors.
The investigation into Faust’s conduct remains active. Authorities have not released additional public details about the status of any charges beyond the initial arrest, nor have they provided an updated timeline for potential filings. School officials, prosecutors and public safety representatives did not provide comment in the documents reviewed.
Anyone with information about the case was urged in court filings to contact local law enforcement. The investigation underscores ongoing concerns about the vulnerability of children placed in the care of adults who hold positions of trust in both domestic and educational settings.