Having had a similar experience... being attacked by stray dogs... any owner not in control of their animals and these breeds, in particular, should be severely fined and if any harm is inflicted on human or pet, should be jailed automatically. If the person is killed by their animals, that should be considered murder.
I have seen several threads about pit bulls killing and maiming folks and the pit bull defenders have not stepped forward with their usual spin. Have they given up?