FBI joins investigation into threats at California High School in San Ramon

SAN RAMON, Calif. (KGO) -- San Ramon police officers and undercover FBI agents surrounded California High School Thursday morning. A school shooting threat was found in the boy's bathroom on Wednesday.

California High School has received five threats this school year, according to the district. The FBI is now a part of the investigation.

San Ramon Police tell ABC7 News they're actively pursuing leads, but don't know who is responsible.

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"We don't have anything at this point to substantiate a credible threat," Corporal Mike Pistello said. "But, we also don't know. We can't say for certain either."

Wednesday's threat was the third the school has received since last Tuesday. One threat was on the football field, and the other two were found in bathrooms.

The most recent threat included a racial slur and called out Black students. Nena Hicks, a California High School parent, is shocked.

RELATED: Message threatens May 9 school shooting at California High School in San Ramon

"Everybody are equal over here," Hicks said.

Unlike a few other parents ABC7 News talked to Wednesday night, Hicks didn't want her daughter to stay home.

"I know my kid is safe," Hicks said.

"When I heard that the San Ramon Police Department was going to be down here, that made me feel much more comfortable about bringing Avery down, so he could take his AP test," Chris Elkin, a California High School parent, said.

RELATED: Police increase patrols at California High in San Ramon after threatening message found

Elkin said his wife is a teacher with the San Ramon school district. He said the district is delaying the AP, or advanced placement test, for some students.

California High School is also providing resources for students who may be shaken up.

"The plan is to ensure safety and make sure things go as smoothly as possible," Corporal Pistello said.

The San Ramon Police Department will remain at the school throughout Thursday.

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