Sabina Rose O'Donnell, 20, was found dead back on Wednesday in a lot next to the apartment building where she lived with her stepfather in the Kensington section of Philadelphia, near the border of Northern Liberties.
Police say O'Donnell died of strangulation and was sexually assaulted. Her body was found nude with a bra wrapped around her neck. Police are testing DNA samples found on her body in hopes of finding a suspect.
A reward of $25,000 is being offered by the Citizen's Crime Commission for an arrest and conviction in this case.
Anyone with information in this case can call the Citizen's Crime Commission at 215-546-TIPS. Callers can remain anonymous.
Police say O'Donnell was out with friends Tuesday night at El Camino, a bar on 2nd Street, and ended up at a friend's house at Front and Girard.
At some point early Wednesday morning, police say O'Donnell rode a bicycle home.
Police say an unknown male snatched her as she arrived at the apartment building and she was then dragged to the rear of the building.
Sabina's friends and relatives created a Facebook page in her memory which featured many photos of a young woman described by her mother as a beautiful, magical woman.