Attacks/break-ins/attempted rape – can we break lease?

Recently there have been a series of break-ins and attempted break-ins. Right around this same time a woman was attacked and almost raped at the CLUB HOUSE gym!!! We have repeatedly asked what’s going on with this – are they doing anything to provide security? Any information if the matter has been taken care of? What should we be looking for? How can we protect ourselves? Their ONLY answer is – if you want to know something call the local police department and get your own report on the incidents. Really? You can’t even so much as print up a little paper and put it in everyone’s mail box to tell them that there have been some "suspecious activities" and to please use the following suggestions to increase your safety… blah blah? 

Point is – they KNOW that THIS complex has been hit SEVERAL times by break-ins and attackers and they are knowingly and willfully not informing their renters that there is/was a problem or how to ensure their safety. Because they’re providing an unsafe environment can we break the lease without recourse?

Thanks for the help – like I said, we want out ASAP so any immediate responses would be helpful.