here again, byron pitts. >> shots fired. >> i need a supervisor on the scene. >> reporter: just daysd in philadelphia -- >> somebody got [ bleep ] shot. >> reporter: there was a mass shooting at the city's iconic south street, killing three and injuring 11. >> multiple people shot. >> reporter: 19-year-old quani thorpe, a member of level up, was there. >> you just hear it, they just start shooting. i got pushed into like this bar, like this security guy was grabbing kids, pushing them, getting them in the bar for safety. >> reporter: the next day he learned his cousin, alexis, 27 years old, was one of the three people killed that night. >> it still blows my mind, like how can you not be here? i still call her phone, still text her, just to hear her voice message. everybody say the world is a better place or the world should be a better place. why not make it a better place? why not stop the violence? >> reporter: but for the city's top leaders -- >> yesterday was a dark day for philadelphia. >> reporter: solutions are few and far between. >> this act of violence is obviously no refle