Female active shooters are rare, FBI data shows: A look back at some notable cases

Female shooters – especially those who commit mass shootings – are rare, data shows.

Police said Nasim Aghdam, 39, shot and injured three people at the YouTube San Bruno headquarters on Tuesday before killing herself. Her father said he had warned police that Aghdam “hated” the company.

According to an FBI database of active shooter incidents in the U.S. from 2000 to 2013, only six out of 160 were committed by women. The database defined an active shooter situation as one in which “an individual actively engaged in killing or attempting to kill people in a confined and populated area.”

Dr. Adam Lankford, a professor at the University of Alabama who has done extensive research on mass shootings, attributed the rarity of female mass shooters to a variety of issues, including gun ownership.

“If you have a firearm, you’re more likely to use it, just like any tool or weapon,” Lankford told Fox News, adding that some men, culturally, purchase firearms “because they’re cool.” He said the gap between men and women who commit homicide through poison or arson is smaller than that of those who use firearms.

“They’re attracted to guns in the way that some men are attracted to cars. Fewer women who purchase guns do so simply because they’re cool,” he said.

Lankford also said men generally are more prone to violence or aggression in pursuit of status than women, citing bar fights and organized crime.

“Men can say we’re willing to kill you and risk death ourselves in order to protect our status or gain status,” he said.

Here’s a look at notable shootings perpetrated by women.

San Bernardino, 2015

Tashfeen Malik, 29, and her husband, Syed Rizwan Farook, attacked Farook’s coworkers in San Bernardino, killing 14 people and injuring nearly two dozen others in December 2015.

Tashfeen Malik is pictured in this undated handout photo provided by the FBI, December 4, 2015. U.S.-born husband, Syed Rizwan Farook, 28, and his spouse, Tashfeen Malik, 29, a native of Pakistan who lived in Saudi Arabia for more than 20 years, died in a shootout with police hours after Wednesday's attack on a holiday party at the Inland Regional Center social services agency in San Bernardino, about 60 miles (100 km) east of Los Angeles. REUTERS/FBI/Handout via Reuters  ATTENTION EDITORS -  TPX IMAGES OF THE DAY  FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS - TM3EBC41SJE01

Along with her husband, Tashfeen Malik killed 14 people at a company holiday party. The couple later died in a shootout with police.  (Reuters)

Malik and Farook were later killed by police after engaging in a shootout with officers.

Malik was born in Pakistan but moved to Saudi Arabia as a child, according to the Los Angeles Times. She also attended college in Pakistan.

Las Vegas, 2014

Along with her husband, Jerad Miller, Amanda Miller embarked on a shooting rampage in Las Vegas, killing two police officers and one other person who tried to intervene, according to the FBI.

Amanda Miller is pictured in this undated handout photo obtained by Reuters June 9, 2014. Miller and her husband Jerad Miller shot dead two Las Vegas police officers and a bystander on June 8, before taking their own lives. REUTERS/Las Vegas Metropolitan Police Department/Handout via Reuters (UNITED STATES - Tags: CRIME LAW) ATTENTION EDITORS - THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. IT IS DISTRIBUTED, EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS - GM1EA6A0SFO01

Amanda Miller and her husband Jerad Miller shot dead two Las Vegas police officers and a bystander before taking their own lives.  (Reuters)

The couple began shooting in a CiCi’s Pizza restaurant before bunkering down in a nearby Wal-Mart. Police said at the time that the pair was “ready to kill as many cops as they could.”

After being cornered by police and exchanging gunfire with them, officials said Amanda Miller, then 22, killed her husband before committing suicide, the Los Angeles Times reported.

Alturas tribal meeting, 2014

Members of the Cedarville Rancheria Tribe council in California were meeting to decide whether Cherie Louise Rhoades should be evicted from tribal housing when she attacked them, the Sacramento Bee reported.

Cherie Louise Rhoades is seen in an undated booking photo released by the Modoc County Sheriff's office in Alturas, California.  Rhoades, 44, has been arrested but not charged an attack at a Native American tribal office in a California that killed her brother, niece and nephew plus a fourth person, officials said on February 21, 2014. Rhoades is expected to be arraigned in court in Alturas on February 25, said a spokeswoman for the Modoc County District Attorney's Office. REUTERS/Modoc County Sheriff Office/Handout via Reuters (UNITED STATES - Tags: CRIME LAW) ATTENTION EDITORS - THIS IMAGE WAS PROVIDED BY A THIRD PARTY. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. THIS PICTURE IS DISTRIBUTED EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS - GM1EA2P03R001

Cherie Louise Rhoades received the death penalty after she killed four people at a tribal council meeting.  (Reuters)

Armed with a semi-automatic handgun and a butcher knife, Rhoades, 44, killed four people, including three relatives, in February 2014, according to the Sacramento Bee. She was sentenced to death in 2017.

Kraft Foods facility, 2010

Yvonne Hiller killed two of her coworkers and injured another at a Kraft-Nabisco cookie plant in Philadelphia in September 2010, WPVI-TV reported at the time.

Hiller, who was 43 then, had been suspended from her job and escorted off the premises, Kraft Foods said in a statement. She eventually surrendered to police, according to WPVI. She was later sentenced to two life terms in prison without parole.

Publix, 2010

After Arunya Rouch was let go from a Publix in Tarpon Springs, Fla. in 2010 for threatening to kill a coworker, she came back to the grocery store to do just that, according to the Tampa Bay Times.

Rouch, then 41, killed a former coworker in the parking lot. She later engaged in a shootout with police where she was injured but survived.

Her husband later testified that Rouch had been bullied by her colleagues at Publix. She was sentenced to life in prison.

University of Alabama, 2010

Dr. Amy Bishop, a 44-year-old biology professor at the University of Alabama in Huntsville, brought a 9mm pistol to a faculty meeting and fatally shot three of her colleagues, police said. Three others were injured.

Bishop, who was sentenced to life in prison, had found out she was passed over for tenure prior to the killings.

Louisiana Technical College, 2008

Latina Williams was 23 years old when police said she opened fire in a classroom at Louisiana Technical College in Baton Rouge.

Williams killed two people before committing suicide.

Goleta postal facility, 2006

Jennifer San Marco began her killing spree by fatally shooting her neighbor in January 2006, according to the Santa Barbara Independent.

San Marco, 44, then went to her former place of employment, a mail processing plant in Goleta, Calif., and fatally shot six people before committing suicide. She reportedly had been put on medical leave for psychological problems prior to the deadly rampage.  

Laidlaw Transit Services maintenance yard, 2001

In April 2001, Cathline Repunte, a bus driver in San Jose, Calif., opened fire on her colleagues with a handgun, according to the FBI. She injured three people and killed one, a man who had trained her, the San Francisco Chronicle reported at the time.

Repunte was 36 at the time of the shooting and was restrained by a coworker until police took her into custody. She was sentenced in 2002 to 35 years to life in prison.

Kaitlyn Schallhorn is a Reporter for Fox News. Follow her on Twitter @K_Schallhorn.