I ran to the window to get a peek, and I saw about 6-7 latino guys ages 16-20, in long white t-shirts (3-4 sizes too big) and jeans. There was a white limo double parked outside Boost mobile, and the gangbangers were pacing around, hooting and hollering. There was a female that came out of the backseat of the limo, and she said something I could not decipher to the gangbangers. I heard a passerby say they were calling the police. Two silver colored cars (one looked like CRV and the other like a Hyundai) sped away from the scene, while the gangbangers ran northbound on Shotwell St. Weird thing is, I could not see if anyone was wounded. The police arrived about 15-20 minutes later and cordoned off 24th St. between South Van Ness and Shotwell.