Four people have been arrested three months after a mass shooting outside a San Francisco strip club left one man dead and three others injured, police said Friday. 

The suspects taken into custody were identified as Jeremiah Thomas, 21; Marilyn Sahagun-Lopez, 20; and 22-year-old Nikeosi Jackson. 

A fourth suspect, Malachi Lefiti, 22, was arrested a day after the April 23 shooting at The Condor, Fox San Francisco reported. He was charged with homicide and three counts of attempted murder, attempted robbery, possession of a firearm by a prohibited person, conspiracy and a gang enhancement, a police statement said. 

Thomas, Sahagun-Lopez and Jackson were taken into custody on Tuesday on suspicion of homicide, attempted homicide, and attempted robbery, along with other crimes that include gang activity. 

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San Francisco mass shooting

The scene of an April 23 shooting in San Francisco that left one person dead and several others injured.  (KTVU)

Investigators said the suspects were trying to rob their victims at gunpoint. During the incident, an altercation ensued and one man, 23-year-old Isaiah Thomas, was killed and three others were shot. 

The shooting victims who survived were only described as two 24-year-old men from Sacramento County and a 20-year-old woman from Contra Costa County. 

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Jackson was also arrested for an outstanding warrant out of Contra Costa County for carrying a loaded firearm in a public place or vehicle and for another warrant out of San Mateo County Sheriff’s Office for carrying a loaded firearm and not being the registered owner, police said.

The Condor Club's managers said the strip club was not connected to the shooting, the news outlet said.