The brother of murder victim Glenn Quinn has been threatened for speaking out against his killers.
Martin Quinn was told by police on Tuesday that they had received a message claiming to be from the South East Antrim UDA ordering him to leave the country within 24 hours or he too would be attacked.
Mr Quinn (51), a retired civil servant, was also told that other people involved in a Facebook page 'Justice For Glenn Quinn' received similar threats.
The South East Antrim UDA has denied, through an intermediary, that it is behind the threats.
It is extremely worrying and I can't not take the threat seriously.
Glenn Quinn was found dead in his Carrickfergus flat following an assault by UDA members.
Two days after his battered body was discovered in his Ashleigh Park home on January 4, police arrested a 38-year-old man and a 47-year-old woman in Carrickfergus and another man, aged 39, in Newtownards.
The threat against Glenn's brother Martin was made on Tuesday and has left the entire family, including sister Lesley Murphy (46) and his mother Ellen (76), distraught.
Martin, a father of three grown up children who lives alone, said: "Police contacted me around 5pm on Tuesday to say they had received a threat. They read it out to me. It said 'Martin Quinn has 24 hours to get out of Carrickfergus or he will be attacked'.
"I understand that I am one of a number of people to get the same threat and the common denominator is that everyone has been vocal through the Facebook group 'Justice for Glenn'.
"Those behind the threat claimed it was coming from the South East Antrim UDA but they have since approached an intermediary to say it had nothing to do with them.
"It made me sick to my stomach. It is bad enough they murdered my younger brother and now they are targeting another member of our family.
"Glenn was threatened on December 29 by an individual purporting to be from the UDA and then he was killed less than a week after that.
"It is extremely worrying and I can't not take the threat seriously.
"Obviously it makes you very aware of your surroundings and I have already had lights and cameras installed inside and outside my house.
"If it happens to me the same way it happened to Glenn then they will be captured on CCTV."
The threat comes three weeks after the UDA issued a statement attempting to distance itself from Glenn's murder.
In response to a plea by his family to the terror group asking them to give up Glenn's killers, the organisation approached a pastor in Carrick with a statement. It said it had no involvement in Glenn's murder and urged witnesses to come forward with the promise of no repercussions.
Martin Quinn knows who killed his brother because he spoke to Glenn before he died.
Glenn was able to tell him everything that happened in his flat in a phone call after the attack.
Glenn (47), who was terminally ill, died alone, suffering from horrific head and face injuries as well as 14 broken ribs and a broken collar bone after a ferocious attack with baseball bats and a metal bar. His killers laughed as they left him dying in a pool of blood.
Glenn and I were the best of friends.
Martin was not in the country at the time and had no idea just how gravely Glenn had been injured.
His younger brother reassured him he was okay and that he would get help.
Martin is now haunted by his final conversation with his brother.
He recalled: "It is something I will never get over. Glenn and I were the best of friends and he called me after the attack.
"I know what happened to Glenn and now his voice comes from the grave through me as I have been able to tell police what he told me.
"We as a family know what happened in that flat. He reassured me he was okay and he sounded okay. I wasn't in the country but I made him promise me he would get help and I contacted friends when I came off the phone to go and check on him.
"I'm devastated I didn't take more action. I really thought he was okay. I had no idea that was going to be our last conversation but at least he was able to tell us what happened in that flat."
Now as well as worrying about his own life, Martin is concerned for his elderly mum who has a heart condition and has already been admitted to hospital because of her distress over losing Glenn.
His sister Lesley is also devastated by the thought of her other brother now being at risk of attack.
Martin said: "It has left me worried for my own safety and for my family and friends and for anyone who might be with me if I am attacked.
"When I told my mother and sister they were devastated and they were both in tears.
"I am particularly concerned about my mother who is not well. It has affected us all."
Martin described those behind the threat as bullies and believes they are using the name of the UDA as a cover.
He also urged people to come forward to police.
He added: "We have full faith in the PSNI investigation into Glenn's murder and I would ask the good people of Carrick to use the Crimestoppers number and come forward and help the police.
"The people behind Glenn's murder and the threat on me don't have a place in our society in 2020."
A PSNI spokesman said: We do not discuss the security of individuals and no inference should be drawn from this.
"However, if we receive information that a person's life may be at risk we will inform them accordingly. We never ignore anything which may put an individual at risk."
Anyone with information should contact police on 101, quoting reference 783 04/01/20 or the independent charity Crimestoppers on 0800 555 111 which is 100% anonymous.