The two Rottweilers had blood on their paws and fangs, a police officer said.
Two pet Rottweilers mauled to death a 68-yearold woman early on Thursday in a gruesome attack that left the victim scalped and her face disfigured.
The dogs attacked Gowri, a resident of Govardhanagiri in Avadi, around 1.30am when she went to the terrace of the house she shared with her husband Chandrasekar, 82, their son and his family, investigators said.
The elderly couple's son Santhosh, who lived on the first floor of the house with his wife and raised the two Rottweilers, aged one and five, said his mother suffered from depression and rarely left the house, an investigating officer said.
"Santhosh said his mother was probably not aware that the dogs were on the terrace," he said. "Other members of the family were asleep when the dogs attacked the woman. Gowri's husband Chandrasekar is hard of hearing and does not recall when she left their bedroom on the ground floor of the house."
