SAN FRANCISCO (KRON) — A San Francisco parking lot’s security guard was charged with murder after he allegedly shot a victim in the back while the victim was walking away, the district attorney announced Tuesday.

Security guard Sefanaia Alatini, 37, of Oakland, is accused of shooting the man in the parking lot, located at 105 Turk Street in the Tenderloin neighborhood, just before 9 a.m. on February 11, investigators said. Paramedics performed CPR before the victim was pronounced dead at the scene.

District Attorney Brooke Jenkins held a news conference to announce that her office charged the guard with murder. Alatini is a convicted felon who is prohibited from possessing firearms, according to the charges.

Leading up to the deadly shooting, there was a “confrontation” between the security guard and the victim, Jenkins said. Alatini pulled out a gun, and the victim pulled out pepper spray, according to the DA.

“The victim took out pepper spray and sprayed in the direction of the (guard) before walking away,” Jenkins said. The victim did not use his pepper spray until after Alatini brandished a gun, she said.

The victim had already turned around and was walking away from the confrontation when he was shot, Jenkins said.

Prosecutors said they will rely heavily on surveillance videos to rebut self-defense claims. “We have cameras all over the city,” the DA told reporters. “We do not believe there is significant evidence of self defense in this case.”

“He was shot in the back,” she emphasized.

San Francisco District Attorney Brooke Jenkins listens to questions from reporters on Feb. 24, 2026. (KRON4 Photo)

Jenkins said the victim was not a customer who used the parking lot.

Murder charges were also filed this week for a second, unrelated case stemming from a “very violent robbery” on February 5, the district attorney told reporters. The victim was assaulted and gravely injured in the area of Bush Street and Taylor Street, according to the San Francisco Police Department.

Officers found the victim lying alone on the street, and there were no witnesses around who saw what happened to him, Jenkins said. He was “suffering from significant skull fractures and internal bleeding,” she said.

Surveillance videos later revealed that he was beaten by a man wielding a 2-by-4 wooden board, and the killer stole his backpack before fleeing the scene.

“Hours after the assault, Mr. Vivero was captured on surveillance camera in the Tenderloin and Union Square areas allegedly wearing the same clothing and the victim’s backpack,” prosecutors wrote.


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The victim succumbed to his injuries in a hospital on February 21. Zuckerberg San Francisco General Hospital workers provided police with information that helped the investigation.

Fourteen days after the robbery, undercover SFPD officers spotted the suspect, 34-year-old Eduardo Cruz Vivero, on Eddy and Leavenworth streets. Vivero still had some of the victim’s belongings when officers arrested him, according to the DA.

Vivero did not know the homicide victim, Jenkins said. The accused killer, who also had an outstanding warrant for his arrest in San Mateo County, was booked into a San Francisco jail. 

Alatini and Vivero are currently in custody, and they are slated to be arraigned in court Tuesday afternoon.