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INDIANAPOLIS, Ind.– A former Franklin Central High School teacher investigated in April is now facing multiple criminal charges.

On April 10, the Franklin Township Community School Corporation said they received an anonymous tip on April 7 from a parent concerned about a relationship between 38-year-old Kathryn Hagan and a student.

According to court documents, Hagan invited the victim over to her home on March 28, and she gave him Xanax. On March 31, she invited the victim to her home again, and they had sex in her upstairs bedroom.

Police spoke with another student who said there was a 10-second video going around the school that showed Hagan and the victim naked together. Court documents say students were trying to use the video to blackmail Hagan into giving them better grades.

Investigators say Hagan also bought a gun for another student, and she told that student to use it to rob other students who may have evidence incriminating her on their phones.

Hagan is now facing charges of conspiracy to commit robbery while armed with a deadly weapon, two counts of child seduction, dangerous control of a firearm (providing a firearm to a child) and dealing in a schedule IV controlled substance.

“Franklin Township is cooperating fully with the Department of Child Services and the Indianapolis Metropolitan Police Department in their investigation,” the school corporation said in a statement after removing Hagan from her position.

The teacher’s first day at the school was Jan. 3, 2017, and she resigned on April 7. The school corporation noted their process includes a full criminal background check.