It all depends upon how your lease agreement is worded. In most cases, you may not be able to get your deposit back because of the neighborhood. Some may argue the Renter should of done some better due diligence prior to leasing. However, there are some agreement with wording to protect your safety, security and/or functionality of items within the property.
If you have no lease agreement, you may have to go to a mediator and/or court. Never hurts to ask, but again, in most cases you will need to make peace and say goodbye to your deposit.
Best of luck!