Skip to content
Authorities accused Carrillo of fatally shooting Underwood from a white van after developing a plot with Robert Alvin Justus Jr. of Millbrae. Court documents filed in both cases allege the men had links to the far-right “Boogaloo” movement. Robert Alvin Justus Jr., a Millbrae man he’d met for the first time only hours before, drove the two away as an exhilarated Carrillo yelled, “Did you see how they f—ing fell!” according to the affidavit.David Patrick Underwood, a 53-year-old federal security officer from Pinole, was shot dead. Steven Carrillo, 32, was charged with murder and attempted murder in the killing of federal officer Dave Patrick Underwood, 53, in a crime that initially stumped investigators. Evidence from that van led Santa Cruz County deputies to Carrillo’s home in Ben Lomond, Anderson said. On the morning of May 29, federal authorities say, as protests erupted nationwide over the police killing of George Floyd, a Travis Air Force Base staff sergeant and purported follower of the anti-government extremist Boogaloo movement sat at his computer at the Fairfield base plotting how to target law enforcement during the civil unrest.“Go to the riots and support our own cause,” Steven Carrillo typed into a Facebook post, according to an FBI affidavit unsealed Tuesday.
But FBI agents were watching Robert Alvin Justus Jr. even before he walked into the Federal Building at 450 Golden Gate Ave. in San Francisco and asked to speak with an FBI agent. Show them the targets.”By 5:30 p.m. May 29, Carrillo’s T-Mobile cell phone stopped pinging at Travis Air Force Base and showed him traveling west on Interstate 80 through Berkeley and to the San Leandro BART Station.
To promote your local classified on Patch, create an account and start posting The latest Alameda news delivered to your inbox every morning. “Their sacrifice won’t ever be forgotten.”The shootings shed light on the relatively new fringe Boogaloo movement. Also arrested in connection with the federal courthouse shooting was Robert Alvin Justus Jr. of Millbrae, who allegedly was the driver of the white van. In court records, the FBI said the term is used by extremists to “reference a violent uprising or impending civil war in the United States.” In the affidavit, the FBI wrote it’s not a defined group, but followers of the ideology “may identify as militia and share a narrative of inciting a violent uprising against perceived government tyranny.”It’s unclear when Carrillo — who has served at Travis since 2018 in the 60th Security Forces Squadron, a military police unit — met Justus online. Investigators found the car nearby with Boogaloo-associated words and phrases scrawled in Carrillo’s blood on the hood: “BOOG,” “I became unreasonable” and “stop the duopoly.”Inside a second van of Carrillo’s found at his house, investigators found a bulletproof vest that included a Boogaloo-inspired patch, modeled after an American flag but with an igloo instead of stars and a stripe that included a Hawaiian design.Carrillo, who stands 5-foot-3 and weighs 140 pounds, attempted to carjack a number of other Investigators from the federal Bureau of Alcohol, Tobacco, Firearms and Explosives determined that an AR-15-style rifle among Carrillo’s possessions was privately made, or a “ghost gun” with no manufacturer markings or serial number, and was fitted with a silencer. Also on Monday, authorities charged a Millbrae man, Robert Alvin Justus, Jr., with attempted murder for allegedly driving the car as Carrillo shot the officer. Millbrae resident Robert Justus Jr. drove a white van past a federal courthouse in Oakland on May 29, while Carrillo shot two security officers—David Patrick Underwood, who died, and one of Underwood’s colleagues, who was injured—out of the van’s open sliding passenger-side door, Anderson said in a press conference. He told agents Carrillo spoke repeatedly about shooting a helicopter, police officers and civilians, according to court records.As they sped off, Justus said Carrillo was “excited and thrilled,” Woolard wrote. Justus destroyed his clothing and backpack, and erased his phone communications with Carrillo.Bennett said there was no evidence either man was part of the nearby protests, but rather they hoped to avoid detection with the crowds.After spending the night in Millbrae, phone records indicate Carrillo traveled to Santa Cruz County early the next morning.On June 5, the FBI released surveillance photos of a The next afternoon, Santa Cruz County sheriff’s deputies received a call about a suspicious white van abandoned off Jamison Creek Road, on land controlled by a water company. Complaint says this photo shows him checking out Oakland Fed Bldg before Carrillo shot Pat Underwood.