Okay, so regarding crime... please do your own research. It's illegal under the civil rights act for Realtors to provide this information. It is readily available on multiple website (click on the local info tab above for example) or you can call the local police.
On the other hand... if the Realtor isn't interested in answering your other questions, I would suggest you move on to another property. Rent, leases, vacancies, condition of property are all valid and normal questions from investors.