Authorities said it happened at 6320 Vine Street just after midnight on Nov. 4.
In footage released by Philly police, the suspect appears to play video games at the home. He is later seen walking out the front door and heading west on Vine Street, investigators said.
The suspect is described by police as a Black man in his 30s or 40s with a full beard, a medium build, and glasses. He was wearing a red, hooded jacket with a gray lining, a gray Nike balaclava, a gray "Dark Side" Pacsun hoodie, black jeans, and black boots.
A $20,000 reward is offered. Anyone with information should call 215-686-8477 or submit an anonymous tip online.
Click here to follow Daily Voice Bethlehem and receive free news updates.