On the evening of January 30, 2006, Jennifer San Marco, a 44-year-old former United States Postal Service clerk, carried out a mass shooting in Goleta, California. She first drove to her former condominium in Santa Barbara, entering through an unlocked sliding glass door, and fatally shot Beverly Graham, a former neighbor with whom she had previously argued, with a shot to the head. Neighbors reported hearing gunshots at the condominium at around 7:15 p.m.
San Marco then drove to the mail processing plant in Goleta, gaining entry to the facility's lot by tailgating another vehicle through the gate. At gunpoint, she took an employee's identification badge to access the secure staff entrance and told the employee, who was unharmed, to leave. At around 9:00 p.m., in the building's parking lot, she shot Ze Fairchild in the head, then shot Maleka Higgins at point-blank range, and fatally shot Nicola Grant. Some employees, alerted by the gunshots, went to windows to look out; San Marco reportedly smiled at them. Several workers fled to a nearby fire station.
Entering the building, which held roughly eighty employees at the time, San Marco shot supervisor Charlotte Colton in the head; Colton was dragged to another room by a co-worker and died two days later at Santa Barbara Cottage Hospital. San Marco proceeded to her former work station, where she fatally shot Guadalupe Swartz, who had tried to flee, with four rapid shots. She also fatally shot Dexter Shannon, a Vietnam War veteran who had not heard the gunfire because he was wearing headphones. San Marco then fatally shot herself.
In total, San Marco killed six people at the postal facility and one person at the earlier Santa Barbara residence, before taking her own life. Colton's funeral drew more than 1,200 mourners, and she was buried at Calvary Cemetery. Goleta's mayor, Jonny Wallis, held a news conference praising the police response, condemning the shooting, and offering condolences to victims' families.
According to writings recovered from San Marco's home in Grants, New Mexico, she believed she was the target of a conspiracy centered at the Goleta postal facility. A Santa Barbara County Sheriff's Office spokesman suggested her paranoia and history of mental illness may have contributed to the attack. Six of the seven victims were minorities, and racism was cited as a possible factor, alongside a personal dispute with Graham and possible resentment toward the Postal Service. San Marco had a documented history of erratic behavior, including a prior involuntary psychiatric hold, and had purchased the murder weapon, a used Smith & Wesson Model 915, from a pawn shop after passing a background check.