In Phoenix/Ahwatukee for 10 weeks and we've been ripped off 3 times

I am having a very emotional night. We moved to AZ on August 1st 2007. While staying at the Residence Inn Chandler our Mobile Fashion Boutique was broken into and they stole a bunch of merchandise within the first 5 days we were here. Two weeks ago, at our house in Ahwatukee, someone smashed out my car window in my driveway and stole my wallet from inside my console. Stolen were my credit cards, cash and drivers license. At 6:00pm today, a young girl, looked about 15, came to my house selling magazines for a soccer team fundraiser. She said she lived a couple of doors down. I invited her in while I looked at her selection. She was here for a good 20 minutes. I even called my 15 year old daughter downstairs to meet her thinking they might become friends. My 5 year old made the girl a picture while we talked. Even though times are tight I wrote the girl a check for a subscription to Elle for $34. She asked me for a bottle of water which I got for her then she left. I noticed a check had been ripped out of my checkbook, leaving a top corner of it behind. She stole a check out of my checkbook. To make a long story short, I called the police and her and another girl pulled the same scam on someone a couple of hours earlier. Two young girls, that don't look a day over 15. I really am beside myself. I lived in Ohio for 38 years and was never a victim of crime even once. I have been here 2.5 months and have been stolen from 3 times. I really want to go home to Cleveland (Mentor) now. If I stay here I'm going to have to teach my kids that they really can't trust anyone and have to constantly be on guard. The cops told us that this really is a good part of town. If this is the good part of town, I'd hate to see the bad part of town.