Sunday, they notified the Sacramento Police Department.
Officers began an investigation into the accusations and on Tuesday the 18th, 38-year-old Aaron Rios was arrested and booked into the Sacramento County Jail.
According to KXTV, Rios tendered his resignation to the school at some point before the school issued a letter from St. Francis President Theresa Rodgers and Principal Elias Mendoza concerning the investigation.
"We are deeply distressed and heartbroken by this situation and its impact on our students," KCRA said the the letter reads. "We have no greater responsibility than safeguarding the students entrusted to our school, and actions like those described in this case are a profound betrayal of that trust."
The initial charges of attempted contact with a minor for sex and lewd act on a child filed against Rios appear to have been upgraded. He is now charged with sexual battery upon a person restrained by accomplice, lewd act on a child 14 or 15 years old, and forced penetration. His bail, which had originally been set at $100,000 is now at $500.000.
He is scheduled to appear in court on Wednesday the 26th at 8:30 am.
Neither detectives nor the school have ruled out the possibility that there could be more victims and/or witnesses. They are both asking anyone with information to please contact the dispatch center at (916) 264-5471 or Sacramento Valley Crime Stoppers at (916) 443-HELP (4357).