Published Thursday, 02 February 2012
But McDonald, who was in jail at the time of the killings, has told UTV he "can't say sorry" - because he "wasn't part of it".
Four men and a 15-year-old boy were shot dead in Sean Graham's bookmakers on the Ormeau Road, in broad daylight on February 5 1992.
Two UFF gunmen carried out the attack using a rifle and a Browning pistol.
A probe by the Historical Enquiries Team resulted in investigators stating in September 2010 that the pistol had actually been handed back to the gang by police - fuelling collusion theories.
No one has ever been brought to justice over the murders.
"There are obviously questions around who armed the loyalists, who allowed it to happen, who decided that individuals would never be prosecuted," Mark Sykes, who was wounded in the attack, told UTV.
At the time, the UDA tried to justify the shootings in a statement that ended with the words: "Remember Teebane."
Eight men were killed and six others injured when their construction van was blown up by a roadside bomb planted by the IRA, on January 17 1992.
But Rev Ivor Smith, a now retired Presbyterian minister who has worked with the Teebane victims' families since the atrocity told UTV the message of retaliation was "like a knife through the heart".
"We were absolutely appalled at the thought that somebody would try to do something like that and justify it by bringing in Teebane," he said.
"As far as the families were concerned, it was very definitely not 'in my name'."
Twenty years on, both attacks remain open wounds that have devastated families and left them with questions that might never be answered.
It will be cold comfort for them that the UDA leader now says the escalating violence and mass killings of the time actually hastened the peace process.