The sound of gunfire rips through a quiet summer night in Philadelphia. The target was a young mother just steps away from her 2-year-old daughter, shot execution-style.

The Philadelphia Police Department is opening their case file and releasing surveillance footage in this case. They are hoping someone at home right now will recognize their person of interest.

Stephanie Dzikowski, a 22-year-old mother was gunned down in her bedroom execution-style in July 2015. Her 2-year-old daughter was sitting unharmed just feet away from her mother's dead body.

If you have any information about Stephanie Dzikowski's murder, please call the Philadelphia Police tip line at (215) 686-8477, or submit a tip online.