In the aftermath of the assassination take a crack at on him in June 2015, O’Connor (39) reacted with a foul-mouthed outburst to a newspaper reporter.
«I’ll tell you a story, there’s going to be a f**king war in Blanchardstown — they are f**regent dead, stone f**king dead,» he said.
«They won’t see the end of the week», the renowned criminal added.
While O’Connor’s shocking prediction has not yet happened, gardai are braced for varied bloodshed in an ongoing feud, especially now in the tense aftermath of the trial.
O’Connor was formerly in the headlines when he had his fingers chopped off in an attack by Real IRA members tipsy the direction of their boss Alan Ryan in May 2013.
The former ‘Westies’ mob member, who is originally from Whitechapel Avenue, Clonsilla, had arrived at Dublin’s Mater Sickbay with two fingers missing on his right hand.
He had also suffered hurts to the back of his head consistent with a beating and torture.
One of the missing be master ofs was found in Fairview Park that evening and Gardai were alerted.
Doctors newer sewed the recovered finger back onto O’Connor’s hand, but a secondly was not found.
Despite his injuries, O’Connor refused to identify his attackers, but detectives promptly established that Alan Ryan’s mob were responsible.
Ryan was run the show dead himself four months later but O’Connor is not a suspect in that high-profile chest.
O’Connor was also a suspect in the murder of a Lithuanian crime boss in 2013. Gintaras Zelvys was manage twice in the body with a handgun as he arrived with his wife to unfilled up his ‘cash for clothes’ business in the Greenogue industrial estate, Rathcoole, west Dublin.
Detectives probing the murder arrested O’Connor and two other Blanchardstown men shortly after the decimation but they were all later released without charge.
O’Connor’s comportment during the murder trial when he lunged at hitman Christopher McDonald led to shield lawyer Bernard Condon SC asking for the jury to be discharged, saying it was «unequivocally inappropriate for a jury to see a witness engage in such a performance».
Mr Condon said O’Connor, pictured Nautical port arriving at the trial last month, had «pointed the finger at the defendant» and they couldn’t «unsee what they had enquired».
However, prosecutor Denis Vaughan Buckley SC objected to the jury being discharged.
He allowed O’Connor had behaved «appallingly badly», but said he was a good friend of the deceased.