Security deposits Pennsylvania
I have an unique situation. The day we moved our belongings into a downstairs apt. the landlord & his helper were finishing up some renovations in the apt. The 'helper' was hired directly out of prison for robbery, burglary and drug trafficking. The landlord had given this 'helper' the only key to the outer basement door, which leads directly into our apt. & also left the front door open when they finished their work inside for the day. Between 10PM & 8AM that night, we were burglarized. The burglar went directly to the boxes containing our jewelry and also stole our 42" plasma TV. We filed a report with the police and a few weeks later, the helper's girlfriend told us it was her boyfriend, the landlord's helper (who also had moved in upstairs) that stole our belongings. This too, was reported to the police. The police agree that they believe the burglar was this 'helper' and also the landlord! We just can't prove it. Other details show this to be true, but we still need to prove it.
Our question (finally) to you is: Can we sue the landlord for negligence or?? For
1) providing a known felon access to our apartment and 2) leaving the front door open the night of the burglary?
He also has not returned our security deposit and it has been over 30 days, so we already know we are going to sue him for double.
Any information and advice is greatly appreciated.