Some girls from 56th Street in the crowd hurried into a gold Oldsmobile 88 and tried to drive away when a male associated with 60th Street fired three to five times, striking Bianca Junious, Walker said. The Oldsmobile then crashed into a police cruiser.
Police took Junious to the Hospital of the University of Pennsylvania. She was treated there and released.
Walker said police knew the identity of the shooter and expected to obtain an arrest warrant soon.
"The respect for society has diminished so much that [a gang] shows up at a vigil where there are infants, children, and adult family members of a murder victim and just fires recklessly at people," Walker said.
Teenagers from 56th and 60th Streets have been feuding for years, partly because of a fight among girls when they were in sixth grade, Walker said.
The feud has spilled into Sayre High School at 59th and Spruce Streets, where most of the teens are or were enrolled.
In January, a 17-year-old student was shot twice on the school's property. The male victim, who survived, reportedly also had a gun.
Other gunfire around the school has been connected to the battle between the 56th and 60th Streets crews, Walker said. Street-by-street warfare is common in the city's poorer neighborhoods, and is responsible for much of the rising gun violence that has plagued Philadelphia.
Yesterday, a memorial of stuffed animals, candles and handwritten messages surrounded an El pillar near a closed section where SEPTA is renovating the Market-Frankford Line.
Some messages suggested Terrence Walker, who graduated from West Philadelphia High School and had a son, was friendly with 60th Street. "6-0 will always miss U," someone wrote.
A flyer advertising Tuesday's vigil remained posted to the pillar. It urged people to attend to remember Terrence Walker and "help send a message to the community to stop the senseless violence in Philadelphia."
