SAN ANTONIO -

A woman identified as Zenisha Nunez, 19, is believed to be the woman captured on cell phone video, using a gun to make threats against a student on the campus of Sam Houston High School.

An arrest warrant affidavit stated that a group of students told a police officer with the San Antonio Independent School District about the threats after witnessing the incident on Oct. 30. The students told the officer, “That girl has a gun,” the affidavit stated.

School district police said the alleged victim, a female student at the school, told them she had received a phone call from Nunez, asking her to meet her in a school parking lot.

The teen said she found Nunez sitting in an SUV with a baby on her lap, the affidavit stated. She told police that they began to argue, then Nunez pulled out a gun, threatened her and used a slang phrase for shooting females, the affidavit stated.

The girl and other students said they quickly backed away from the vehicle, fearing that Nunez might shoot them, the affidavit stated.

According to the affidavit, a  male student later came forward and showed police video of the incident that he captured on his cell phone.

Investigators said the video also showed the vehicle license plate and they were able to use that information to track down Nunez.