You are confusing "property rights" with "liability"
The victim could have easily been a meter reader from a utility company or a kid merely chasing a ball onto the front yard. The liability is still the same for the owner.
The real question here is the owner criminally responsible for the man's death?
"Did the dogs previously escape from the feeble gate?"
"Any previous complaints about the dogs viciousness?"
"Was the maintenance man invited or is this just a CYA story?"
"Did she know Pit Bulls lead in human fatalities and failed to secure them properly?"
A few Yesses and she's looking at potential Manslaughter charges.
Oh... My condolences to the victim, since it was never mentioned.
I agree that the burden is on the owner.