A student who allegedly threatened to carry out a shooting at Rancho Bernardo High School in California was arrested Friday, and his 45-year-old father was arrested Tuesday morning after San Diego police discovered rocket-propelled grenades (RPGs) and non-serialized guns in the family home.

NBC 7 San Diego reported that police were alerted Friday that the student was allegedly threatening to carry out a school shooting on January 30, 2024. The student was arrested and detained on Friday.

The San Diego Union-Tribune noted that “authorities also obtained a temporary gun violence restraining order against the student,” which allowed police to enter the family home to search for guns that the student could have accessed.

NBC 7 pointed out that police searched the family home on Tuesday morning and discovered “unregistered, un-serialized firearms; manufacturing supplies to make ghost guns (both rifles and handguns) as well as a large number of explosives and rocket-propelled grenades.”

The student’s 45-year-old father was subsequently arrested and faces numerous charges.

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AWR Hawkins is an award-winning Second Amendment columnist for Breitbart News and the writer/curator of Down Range with AWR Hawkins, a weekly newsletter focused on all things Second Amendment, also for Breitbart News. He is the political analyst for Armed American Radio, a Turning Point USA Ambassador, and a pro-staffer for Pulsar Night Vision. He was a Visiting Fellow at the Russell Kirk Center for Cultural Renewal in 2010 and holds a Ph.D. in Military History, with a focus on the Vietnam War (brown water navy), U.S. Navy since Inception, the Civil War, and Early Modern Europe. Follow him on Instagram: @awr_hawkins. You can sign up to get Down Range at breitbart.com/downrange. Reach him directly at awrhawkins@breitbart.com.