PHILADELPHIA (CBS) — A 17-year-old girl is dead and two teenage boys are in stable condition after a shooting Friday night in West Philadelphia.READ MORE: CBS3 Mysteries: Philadelphia Police Looking For Answers In Markeya Green's Murder That 'Absolutely Shocks The Conscience'
Authorities say her mother was sitting on the front steps and witnessed the tragedy unfold.
“I heard someone scream Sandrea, Sandrea, Sandrea three times,” a neighbor told Eyewitness News.
Sandrea Williams was gunned down just after walking away from her steps where she was sitting with her mother.
“Her mom just looked so blank in the face like she was in pure shock,” another neighbor added.
Investigators say just before 11 p.m., two gunmen fired 22 shots, striking two teenage boys and killing Williams on the 300 block of North Simpson Street, but it’s unclear who the intended target was.
Philadelphia Police Lt. John Walker says the gunmen shot Williams in the neck, leg, and back as she was standing in the driveway with her 17-year-old friend, who is in stable condition at Penn Presbyterian Medical Center.READ MORE: Edwin Allen Charged With Sexually Assaulting Woman In Upper Darby SEPTA Train Terminal
Investigators add that a 16-year-old boy, who was standing on the same street at the time, was also shot and is in stable condition at Lankenau Medical Center.
It’s unclear whether he knew the two other teenagers.
There is no motive at this time.
Right now, investigators are still looking for the two gunmen.
A $20,000 reward is being offered for information leading to an arrest or conviction.MORE NEWS: North Philadelphia Rat Infestation 'Subsiding And Leaving Slowly' After City Officials Lay Down Poison In Empty Lot
If you have any information, call police at 215-686-TIPS or 215-686-3334.