"Another nearby resident, Ruth Marcus, said she’s feared to walk by the dogs’ home in her neighborhood, but she believes 'dogs are what owners train them to be.'"  Pit bulls kill a person every 17 days in the US along with thousands of small animals and livestock annually..  Often toddlers and small children.    Did all those pit bull owners train their dogs to behave this way?

For hundreds of years pit bulls were purpose bred for bull and bear baiting and then dog fighting.   Explosive aggression without warming is their genetic specialty.  That's  why they’re the No. 1 choice for dog fighters and the No. 1 killer canine of people and animals.  A highly specialized trait for mauling other animals, including and especially other combatant pit bulls, was deliberately induced into bully dog genes. Google "pit bull history" for references.  Google "pit bull attack" to see current news reports of daily reported mauling events involving 4-7 figure total medical bills.