Federal Protective Service Officer David Patrick Underwood, 53, was fatally shot on May 29, 2020, at a guard post outside the Ronald V. Dellums Federal Building and U.S. Courthouse in Oakland, California. The attack occurred when a white van approached and shots were fired from the vehicle; another officer was seriously injured.

Investigators identified Steven Carrillo as the shooter, firing multiple rounds from an AR-15 style rifle from the back of the van driven by Robert Alvin Justus Jr. Both men had online ties to the Boogaloo anti-government extremist movement. Carrillo was charged with murder and attempted murder; Justus was charged with murder and aiding and abetting. Prosecutors presented evidence that Justus had opportunities to leave but remained involved, while Justus claimed he had been forced into the plot at gunpoint.

Officer Underwood’s killing is linked in the case to other violent acts by Carrillo. Anyone with information about Officer Underwood, his movements that day, or the white van is asked to come forward.