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Jun 25, 2026

'Natural selection': Teen walks in library with shotgun, starts blasting people, FBI says

Twitter share button Left inset: Brad Sayer (Chico Police Department). Right inset: Jacob Hull (Facebook). Background: The library in California where Brad Sayer allegedly killed Jacob Hull with a shotgun while he was shielding an 8-year-old girl during Sayer's deadly shooting rampage (KRCR/YouTube).

Left inset: Brad Sayer (Chico Police Department). Right inset: Jacob Hull (Facebook). Background: The library in Chico, Calif., where Brad Sayer allegedly killed Jacob Hull with a shotgun while he was shielding an 8-year-old girl during Sayer's deadly shooting rampage (KRCR/YouTube).

A California teen walked into a library with a shotgun and a T-shirt bearing the words "Natural Selection" — an ode to the Columbine High School shooting — and started blasting people, killing two, including a man who shielded an 8-year-old girl, cops say.

Bradley Sayer, 18, walked through the Butte County Library in Chico on Monday evening without a weapon before going out to his vehicle, retrieving a shotgun from the trunk, and going back inside, according to FBI officials and local police.

Friends and family told The Sacramento Bee that one of Sayer's victims was Jacob "Cody" Hull, a 46-year-old from Chico who died protecting his friend's daughter.

"Sayer had no known connection to the library or any of the victims," the Chico Police Department said in a press release Tuesday. "Based on information revealed during their interviews with the suspect, detectives believe he was influenced by Columbine High School shooting-type mass casualty events."

The shirt Sayer was wearing was similar to a shirt worn by Columbine shooter Eric Harris, which also had the words "Natural Selection" written on it, according to officials.

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"Sayer fired approximately 8 total rounds from a shotgun during the course of the incident," the CPD release says. "One victim was struck directly outside of the library entrance, and the others inside the building."

Hull has since been hailed as a hero.

"I think a lot of people would like to think that they are capable of doing that, but that takes a lot," said Philip Brun, uncle of the girl Hull shielded. "I'm not sure we all have that."

Hull and the girl's mother had known each other for nearly 15 years, according to Brun, and he was alone with her at the library when Sayer walked in and opened fire.

"I think that the mental side of it probably hasn't hit her yet," Brun told the Bee. "That's a lot to process."

Sayer's father, David Sayer, told the San Francisco Chronicle that his son was a "shy little boy" who was "high-functioning" on the autism spectrum. He had just graduated from high school with honors on June 5.

"Brad has always been a delicate little flower," David Sayer claimed. "He's never harmed anybody. I can't say that anymore."

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