A fight between two nursing students turned violent Thursday morning in Miami Gardens.

Investigators said when one student arrived at an office building at 1111 Park Centre Boulevard., she faced a hail of gun fire from a woman investigators said was named Lupe.

Miami Gardens Police later identified the shooter as Guadalupe Hernandez, 59.

“She runs outside, going after the lady when she parked and as soon as the other lady parked, she started discharging her gun,” said security guard Eddie Hernandez.

He said he’s known Lupe for several years and was shocked when the bullets began flying. A few seconds after the shots rang out, the intended target, Lupe’s boss, came screaming into the building.

“She was hysterical,” Eddie Hernandez said. “She was saying, ‘Lupe’s got a gun, she’s trying to shoot me. Lupe’s got a gun, she’s trying to shoot me.”

The security guard said he immediately tried to get everyone else arriving to work out of harms way, but he saw Lupe trying to reload.

“She was trying to click the gun back and she was trying to reload,” he said. “When she was inside the lobby, when she was trying to reload, the other gentleman in the lobby came up behind her, grabbed her hand with the gun and with the other hand was able to strip the gun away from her hand.”

Still, the question no one can answer is what caused the shooting.

“It probably has something to do with the suspect, the lady with the gun, thought that she was eventually going to get fired which was not the case; and she flipped, her mind flipped,” Eddie Hernandez said.

The building is home to several businesses, including Metro Traffic.

After the incident, Metro Traffic’s employees moved to a new location, though some of the employees are still working out the building.