San Francisco prosecutors said today they won’t immediately be able to file charges against a woman who police believe may have had a role in the fatal shooting of a Louisiana man during a robbery early Sunday in the city’s Hunters Point neighborhood.Michael Bailey, 26, of Baton Rouge, La., died after being shot at about 3:30 a.m. on Doublerock Street, a one-block, dead-end street in the city’s Alice Griffith public housing project. Police and prosecutors said Bailey, who was visiting San Francisco, and his friends met the woman at a club that night and agreed to drive her back to her home on that street, where they were then robbed and Bailey was shot in the head.Authorities are investigating whether the 21-year-old woman may have lured Bailey and his friends to the robbery.The woman was arrested at about 2:30 p.m. Sunday on Esquina Drive in the city’s Visitacion Valley neighborhood, Sheriff’s Department spokeswoman Eileen Hirst said.She was booked into jail Sunday night on three counts of robbery, one count of murder and one count of conspiracy, Hirst said.But prosecutors said today that there is not yet enough evidence to charge her, and that she will likely be released pending further investigation. No one else has been arrested in the case.”There is insufficient evidence to charge the case today, but we are hopeful that charges against all of those involved in this heinous crime will be forthcoming,” district attorney’s office spokesman Brian Buckelew said.”It’s very active, there’s a number of promising leads, it’s just not there yet,” Buckelew said.According to police, after the woman went inside the home, a man came up to Bailey’s group in the car, brandished a gun and ordered everyone out of the car and onto the ground.Several other suspects then came up, went through their pockets and robbed them.”Then there was some kind of verbal exchange,” and Bailey was shot, police spokeswoman Sgt. Lyn Tomioka said.The suspects then scattered. Bailey’s friends were able to pull him back into the car and flag down police officers, but Bailey died at the hospital a short time later.Bailey was a senior in the electrical engineering department at Southern University in Baton Rouge, according to a university spokesman.University spokesman Ed Pratt said grief counselors assisted students at the engineering department on Monday.