Police search for two gunmen after 17-year-old killed in West Philly shooting

Police are still looking for two gunman who fatally shot a 17-year-old girl outside her home. It happened Friday night on the 300 block of North Simpson Street and now the neighborhood is in shock.

17-year-old Sandrea Williams was hanging outside with friends Friday night--standing just feet from her home when police say two gunmen popped out of an alleyway and senselessly fired as many as 23 gunshots in 7 seconds.

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"It's like a terror attack--crept down an alley and do something fire indiscriminately on a group of kids," Philadelphia Police Department Captain Jack Ryan.

Police say bullets pelted Williams in the neck and back. She died in a matter of minutes. Two teenage boys were both hit in the leg and survived. The shooters took off running, according to police.

Over the weekend, neighbors set up a memorial for Williams at North Simpson and Carlton Streets. It's where she took her last breath. They describe the victim--nicknamed 'Bro Bro'-- as a nice girl. She was a typical teen who police say was not the intended target. The shooters are believed to be teenagers and may have been trying to take down one of her friends, but police don't know for sure.

Police are asking for the public's help in tracking down the shooters. They ask the public call 215-686-TIPS and share the information anonymously.