Mahon will be sentenced later this month
Killer Dave Mahon has spent his first night in custody after being convicted of the manslaughter of his stepson, Dean Fitzpatrick.
A jury of six men and six women took over eight hours to reach a majority decision of 10-2 that Mahon was not guilty of murder but guilty of manslaughter.
Mahon's bail was revoked by Ms Justice Margaret Heneghan and he was remanded in custody pending his sentencing hearing on May 30.
The maximum sentence Mahon faces for a manslaughter conviction is life in prison, though this is very rare after manslaughter verdicts.
The Dubliner had denied killing father-of-one Fitzpatrick on May 26, 2013, a day after the deceased interfered with his bicycle to annoy him. The 45-year-old, smartly dressed in a navy suit and an open-necked pale pink shirt, barely flinched when the verdict was announced.
His wife, Audrey, Dean's mother, looked shell-shocked and wiped a tear from her eye.
It was the prosecution's case that Mahon was drunk, angry and agitated and that he stabbed his stepson, before fleeing the scene and leaving him to die on the street. Mahon had claimed the stabbing was an accident, or "accidental self-impalement" as his barrister Sean Guerin put it.
He claimed that after a confrontation, he took a knife from Fitzpatrick, and was showing it to him and asking him what he was doing when Fitzpatrick walked into it.
Prosecution counsel Remy Farrell told the jury this was "a farcical story".