Security personnel usually arrive at Spartan Aviation Technology College to make the sound of the plane growl overhead.

According to students, he started shifts on campus near Los Angeles International Airport later that day and wore a blue collar shirt as part of his uniform.

But on Friday, the defender, who was later identified as 40, was armed with a pistol, who once shot two women, one of whom was fatal.

The Los Angeles County District Attorney’s Office charged Figueroa Tuesday with murder, attempted murder, possession of a firearm with a previously violent conviction and possession of a firearm by a felon with a previous conviction.

Authorities said both employees of the victim were shot and killed in the administration building. An injured but surviving woman works in the admissions office. According to her family, the other is Caseisha Clark, who was recently promoted to Dean of Student Affairs.

The arrival of officers found two injured women breathing, but remained conscious. They were taken to local hospitals while police searched the campus for shooters.

Authorities said Figueroa fled the scene in his car and was detained in South Korea town less than three hours.

A shooting victim remains in the hospital. But according to her family, Clark died Monday from injury at the Port-Ukrainian Medical Center. She is 35 years old.

According to her family, Clark arrived in California a few years ago to further her career, calling her a trailblazer and inspiration.

"Caseisha is the most compassionate, loving and faithful person," her family said in a statement. "She is a radiant, happy, driven and compassionate woman who has touched countless lives across the country from Atlanta, Georgia to Los Angeles."

Her family said her legacy should not be defined by her death but rather "her extraordinary way."

According to the school, Clark received a bachelor’s degree in psychology from Clark Atlanta University as well as her master’s degree and a doctorate in higher education.

"Caseisha has made everyone lucky to cross her path," her family said. "Her leadership, integrity and a deep sense of purpose help shape the future of countless students from the University of Clark Atlanta campus to Spartan College. She believes in the potential of others, even if they can't see it on their own."

Authorities confirmed that Figueroa worked as a security guard for a third-party company on the Inglewood Campus, but did not disclose possible motivations. Ingwood Mayor James Butts called the episode a move of “workplace violence” rather than a random shot.

Chris Becker, Spartan College campus president, said the school is working with the investigation.

“We are very sad and frustrated by what happened,” Becker said over the weekend, adding that consulting services and support were arranged for students and staff.

On Wednesday, there were few signs of shootings from outside the university property. School officials will not say whether there are memorial shooting victims on campus.

Students said that from time to time they saw Clark on campus, she would say hello because they were walking between industrial buildings.

“It’s really miserable,” a student said only of his students on the sidewalk outside the administration building.

Other students say campus safety has improved since the shooting and classes are still in class.

Records show Figueroa was convicted of robbery in 2007. He was arrested on suspicion of attack with a deadly weapon and posed a criminal threat in the same case, but the charges were dismissed under the complaint agreement, according to court records.

Prosecutors accused Figueroa of using a pistol to cause serious personal injury or death. The enhancement of gun volume will impose an additional fine on each offence for 25 years.

“Any student, faculty member or employee should feel safe to attend school,” DIST. Atti. Nathan Hochman said in a statement announcing the charges.