A 29-year-old Kerryman has been sentenced to ten years and 11 months' imprisonment for the manslaughter of his elderly uncle in January 1996.
A jury in the Central Criminal Court deliberated for more than eight-and-a-half hours over three days, before finding Eugene Daly, of Kilcummin near Killarney, not guilty of murder, but guilty of the manslaughter of Paddy Daly.
It was Eugene Daly's third trial on the murder charge.
The first jury in 1999 disagreed while the second trial collapsed midway through the case.
Paddy Daly, a Kerry farmer who never married and suffered from psychiatric problems, was murdered by his only brother, Seán, in January 1996.
He was hit on the head with an iron bar in a bitter row over the family farm.
The jury at his three-week trial accepted that Eugene Daly did not know his father's plan to kill Paddy Daly but that he stood idly by as the injuries were inflicted. This amounted to extreme recklessness and criminal neglect, but not an intent for murder.
Eugene Daly told his trial he had carried his uncle's body across the road from the farmhouse and dumped him in a disused well. He then wiped the murder weapon and cleaned up the visible blood.
He described himself in court as 'the only cowboy left standing at the end of the gunfight'.