San Francisco police described the slayings of five people at a home near City College as extremely violent, adding that detectives are still trying to piece together what happened.
According to a news release, police arrested Binh Thai Luc in connection with the deaths. His brother, Brian Luc, has been arrested and charged with narcotics violations, the news release said. Both lived together in San Francisco, according to the news release.
“The Medical Examiners office is working to determine the cause of death and the identification of the victims,” the statement said.
Police Chief Greg Suhr told the San Francisco Chronicle that all the victims died of blunt trauma and that “an edged weapon … that can cut someone” was used.
Initially, police thought the killings might be a murder-suicide.
San Francisco police spokesman Albie Esparza said in an interview with the Los Angeles Times that the bodies of the three women and two men were discovered about 7:45 a.m. Friday by a woman who may also be a family member.
Medical examiner’s investigator Charles Cecil said the bodies were taken to the examiner’s office by about 3:30 p.m. Friday. He said an examination would probably be done Monday and provided no additional details on the causes of death.
Esparza said authorities got a call from a woman with access to the house, which is near a private high school and City College. When she arrived, she found a man dead in the foyer and two more bodies in the garage.
“Then she ran out of the house,” Esparza said. “It’s pretty traumatic.”
When authorities arrived, they discovered the other two bodies in the back of the house.
San Francisco Mayor Edwin M. Lee on Friday called the incident “a terrible tragedy.”