Jason Corbett's heartbroken twin has said his beloved brother was "slaughtered" by his wife Molly Martens.
Molly and her father Tom Martens were both found guilty of second degree murder on Wednesday and sentenced to a minimum of 20 years in prison after killing the Limerick businessman with a brick and baseball bat at his North Carolina home.
Speaking on Sean O'Rourke's show yesterday, Wayne Corbett said: "The trial was extremely difficult for all of us and obviously the pictures that nobody else will see - pictures of his bedroom, the house, Jason himself and his autopsy stuff that will never get out of our heads - it's something that's still with me. It's hard to comprehend that they didn't just kill him, they slaughtered him. There were blows to his head after he died.
"You'd never expect that to happen to anyone, let alone a twin brother. You would never expect a wife and father-in-law to do that to anyone in any circumstances."
He also said he believed his brother was asleep when he was attacked.
Mr Corbett added: "I remember when my sister Tracey, her husband David and a few friends went to North Carolina after Jason's death and Molly had his body moved to different funeral homes a few times.
"She wouldn't tell them where he was at first."
Catherine Fitzpatrick, sister of Jason's first wife, 'Mags' Corbett, said Molly Martens did not just murder Jason Corbett but "made everything difficult, she went out of her way to hurt people".
Ms Fitzpatrick said that following the murder Molly Martens sent the bill for the ambulance used to transport Jason Corbett to hospital on the night of his murder to the Corbett family.
When asked about the Martens' claim of self-defence, she said it made her angry that they were trying to tarnish her brother-in-law's name, adding "it was all just lies".
She said that Jason Corbett was always adamant that Molly Martens would not be allowed to adopt his children and that he intended to return to Limerick so that his children could attend secondary school there.
Ms Fitzpatrick said she was not aware that her nephew Jack had written the letter which was read to the court.
She added he had had to grow up very quickly and was a "very mature little boy and maybe he just had to do that for himself".
The children are said to be doing well and are surrounded by family and friends.
Ms Fitzpatrick said both families always talk about Jason and Mags to the children, describing the couple as "soulmates".
She said her brother-in-law was a "brilliant husband" and father and "they [the couple] had everything they wanted when they had Jack and Sarah".
Wayne Corbett paid tribute to the District Attorney's Office in North Carolina and the Davidson County Police Department for their work in bringing about a conviction.
He said he accepted the sentence handed down.
A powerful letter by Jack was read out after the Martens' sentencing, in which he wrote: "She (Molly) has put this burden on this family, and it will not be done until she is put away."
He added: "She will always be remembered as a murderer."