Fulton County police have identified four suspects in an animal cruelty case.
Three have been arrested while one suspect is still at large.
Authorities say they discovered 20 dogs, nine of which are puppies, in what they described as deplorable conditions at a home off Old Farm Road.
Police say the investigation began after three dogs from the home attacked an 85-year-old neighbor while she was standing at her mailbox.
One of those dogs was shot and killed by police who charged at officers who were serving a warrant at the home.