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SAN FRANCISCO, California (KNTV) -San Francisco police have made an arrest in connection with the murder of five people found dead early Friday morning.

Binh Thai Luc, 35, was arrested on suspicion of five counts of homicide, San Francisco Police Chief Greg Suhr said Sunday at a press conference.

His brother, Brian Luc, 32, was also arrested on suspicion of narcotics possession, being a felon in possession of ammunition and a probation violation.

The two brothers live together.

The medical examiner is still trying to confirm the cause of death and the identities of the five people found dead in the two-story Ingleside home, Suhr said.

Three of the victims were discovered around 7:45 a.m. Friday by a family member, who called 911.

Police found the other two victims in another part of the house.

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