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An administrator at Alhambra High School has resigned after a former student posted a video on YouTube that showed the young woman confronting the instructor she said abused her for years.

Jamie Carrillo recorded video of an emotional phone conversation that showed her calling her alleged female abuser and demanding answers.

Carrillo, 28, spoke exclusively to KTLA after she posted the video online Friday. She planned to hold a news conference at 2:30 p.m. Monday.

On the call, Carrillo can be heard talking about the basketball coach she knew as Ms. Cardosa, from Chemawa Middle School in Riverside.

Jamie said the former coach, who was identified in the video’s description on YouTube as Andrea Cardosa, began sexually molesting her when she was just 12 years old.

She said it started with the coach kissing her in the locker room, and progressed to the point where the coach was taking her on out-of-town trips to have sex with her.

Carrillo claimed the abuse lasted for years.

“Everything was stolen from me,” Carrillo said.

“She just completely manipulated me into thinking that I needed her and I wanted it,” Carrillo said.

Cardosa had most recently been working as an assistant principal at Alhambra High School, and last week, Jamie decided to call her.

She recorded the conversation and posted it on YouTube. During the call, the woman that Jamie was speaking to did not deny sexually molesting her.

Jamie accused her of ruining her life and ruining her childhood.

The woman responded, “I regret it.”

Jamie told KTLA she posted the call online because she wanted to let people in Alhambra know what kind of person works around their children.

She said it has taken her years to get up the courage to talk about the abuse she suffered, but she said she believed the offender will never be prosecuted because of the California statute of limitations.

Still, she said posting the phone call has helped her.

KTLA has not been able to reach Cardosa to get a response to the allegations.

The Alhambra Unified School District sent a letter to parents Sunday referring to the YouTube video.

“On Friday, January 17, 2014 Alhambra High School administration received an electronic message with a youtube link incriminating an Alhambra High School administrator,” the letter stated. “Alhambra High School administration contacted the Alhambra Police Department immediately upon discovering the link. The matter was handed over to the Alhambra Police Department who immediately began their investigation.”

The administrator resigned after being “interviewed,” the letter stated. The woman had worked at Alhambra Unified for four months, according to Superintendent Laura Tellez-Gagliano.

Alhambra police will hand the investigation over the appropriate police department, the school district letter said.

Correction: An earlier version of this article stated the Alhambra school district told parents Cardosa no longer worked at Alhambra High. In fact, the school district did not identify the administrator by name. The article has been updated to reflect that.