I agree with B, I would call a lawyer, find out how much you can sue for and go for the maximum. Personally if I had seen my dog attacked/killed I would have tossed the dog over the railing but that is just me being a dad. I'm surprised they allow Pits etc in your building. We recently revised our pet contract (I sit on the board) to specifically exclude certain sizes/breeds to prevent this type of thing from happening. As of 2/1 several breeds (including Pits) are banned from our condo building or any community property. First off, calm down and don't do anything you will regret. Call the police, file a police report and have the dog taken into custody. I would move to have it swiftly put to sleep and then work on a lawsuit against the owner. Once completed I would recommend the building move towards putting restrictions on breeds, sizes etc to make sure this doesn't happen again. A good way to go about getting those type of breeds etc banned is by threatening to sue the building unless their policies change. We had a close call here and that is what landed the changes.

I hate to say it, but I hope people listen to the things B and I have said on this forum. Those dogs, no matter what the owners on here will lie to make you believe are NOT fit for homes or condo buildings. Their a danger to society and the people their owners force to be in contact with them. I have believed for a long time (and enforced) a new Pit policy for my dog. He isn't even allowed to sniff them, that is how serious I am about it.

__________________
The Present:
2014 Audi Q5 TDI Prestige
The Past:
2013 Lexus GS350
2013 VW Golf TDI
2007 BMW X5 4.8i LOADED & Loved
2009 VW Jetta
2008 VW Touareg VR6
2005 BMW X5 3.0i
2005 BMW Z4 3.0i
2004 BMW X5 3.0i
2003 BMW 325i
2000 Ford Explorer Eddie Bauer 4x4