SAN FRANCISCO (CBS SF) — San Francisco police have made an arrest in connection with the murder of five people found dead at 16 Howth Street early Friday morning.

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

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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.

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KCBS’ Bob Melrose Reports:

Three of the victims were discovered around 7:45 a.m. Friday by a family member with a key, who called 911. Police found the other two victims in another part of the house.

A man was found in the threshold of the home, while a man and woman were found in the garage. Another woman was found upstairs and a third woman was found downstairs, according to police.

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