Father of one-day-old Hamilton baby mauled to death by a Rottweiler suspected ...

The father of a one-day-old baby newborn baby who was mauled to death by the family pet Rottweiller's while his mother was in the bathroom had died in a suspected suicide months earlier.

The newborn, who was called Jackson, was attacked by the two-year-old dog at his mother's home in the Hamilton suburb of Enderley on New Zealand's North Island on Sunday night.

A neighbour said the baby - who was rushed to Waikato Hospital but died that night after suffering critical injuries - was grabbed while his mother was using the toilet.

The infant's grandparents Vera and Viktor Zabiyaka said they weren't even aware of his birth until the moment they were called to the hospital.

Anton Zabiyaka (pictured with the killer dog left) whose baby son died after being mauled by a pet Rottweiller on Sunday night, didn't know he was going to be a Dad when he was suspected of taking his own life in April.

Anton Zabiyaka (pictured with the killer dog left) whose baby son died after being mauled by a pet Rottweiller on Sunday night, didn't know he was going to be a Dad when he was suspected of taking his own life in April.

'[The midwife] told us the baby was "beautiful" and a "good" boy... he had been bitten but he was still alive,' the grandmother told the NZ Herald.

Speaking out following the tragedy, the grandparents said the baby's father Anton Zabiyaka didn't know he was going to be a dad when he died of a suspected suicide in April.

The late father, then 32, was released from prison in December of last year after smashing up hotel rooms in Hamilton in 2016 while high on drugs before carjacking his way to a town 50km away.

He was convicted on counts including aggravated robbery, aggravated assault and possessing methamphetamine.

Vera Zabiyaka - who immigrated to New Zealand from Russia more than two decades ago - said prison had not helped her troubled son.

'I think if he knew he was going to be a father he would still be here. Prison doesn't make people better,' she said.

'It is hard to accept your son is dead but as a grandmother, I cannot truly believe what has happened - this is unthinkable to lose two members of your family in a matter of months.'

The city's council has seized a Rottweiller and one other dog believed to be a Staffordshire terrier.

The baby's mother had posted an ultrasound picture of the baby in the lead up to his birth

The baby's mother had posted an ultrasound picture of the baby in the lead up to his birth

The chairman of Hamilton City Council's Dog Control Hearing Panel councillor Ewan Wilson said they would destroy the dog if the court made that decision.

Even if the court ruled not to put

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