Police have said that a dog that killed a pensioner in Liverpool was not a banned breed.
Clifford Clarke, who was 79, was savaged in the garden of his home in Clubmoor on Saturday
Two women have been questioned and released on bail.
Mr Clarke's family, paying tribute to him, have given their support to new laws for dog owners.
Our correspondent Ashley Derricott reports.
Merseyside Police say a dog which killed the pensioner Clifford Clarke on Saturday was not a banned breed under the Dangerous Dog Act.
Tests found the dog was a bull mastiff crossed with either a presa canario or a bandog. It was shot dead by armed officers at the scene.
The family of a man from Liverpool killed in a dog attack have said they are "heartbroken".
Clifford Clarke was killed by the animal in his back garden in the Upmoor area of the city.
In a statement Clifford's brother Kenny said:
Cliff was a very easy-going man."He did his own thing and made a point about helping others.
"He loved his local pub - the Farmer's Arms - and had many old friends of his there who will miss him dearly.
"He did not deserve this so please put your support behind new laws for dog owners because you would not like any of your loved ones to have this happen to them.
"Our family are heartbroken."
Merseyside Police said their investigation into the death of Mr Clarke is still ongoing and appealed for anyone with information to come forward.
Officers were called shortly after 8.30pm on Saturday and found Mr Clarke lying on the ground with the animal nearby.
An armed unit was called in to shoot the dog.
A friend of Mr Clarke suggested he could have been attacked because the dog could smell the food he was cooking for his dinner.
It was also suggested Mr Clarke had complained about the dog only the day before, and intended to report it to the police.
A spokesman for Merseyside Police said a post-mortem examination showed Mr Clarke died from "multiple injuries consistent with a dog attack".
Two women arrested after a dog killed a man in Liverpool have been released on bail.
The pair aged 28 and 27 were questioned on suspicion of manslaughter and an offence under the Dangerous Dogs Act.
A police investigation into the death of 79-year-old Clifford Clarke in the back garden of his home in Richard Kelly Close in the Clubmoor area of Liverpool remains ongoing.
Merseyside Police can confirm that, following a post-mortem examination this afternoon, 79-year-old Clifford Clarke died from multiple injuries consistent with a dog attack.
Mr Clarke was attacked by a dog in the back garden of his home in Richard Kelly Close in Clubmoor, Liverpool, at around 8.30pm last night.
Two women aged 28 and 27 from Clubmoor remain in police custody having been arrested at 10pm last night on suspicion of an offence under Section 3(3) the Dangerous Dogs Act 1991.
They have been further arrested this afternoon on suspicion of manslaughter.
A man who died after being attacked by a dog in Merseyside has been named as 79-year-old Clifford Clarke.
Merseyside Police are investigating the death of a 79-year-old man in Clubmoor on Saturday night after a suspected dog attack.
A Merseyside Police statement said:
Officers were called to an address on Richard Kelly Close just before 8.40pm to reports of a dog attack on an elderly man in the garden of his home.
When they arrived officers found the body of the man and they were confronted by a dog that was out of control. Armed officers attended at the scene and the dog was destroyed. At this stage the breed of the dog is still to be established.
A post mortem examination will take place this afternoon to establish the cause of death. House-to-house inquiries are underway and Crime Scene Investigators are carrying out forensic examinations at the scene.
Two women, aged 27 and 28 years, from Clubmoor, have been arrested on suspicion of an offence under the Dangerous Dogs Act, 1991.