Published Monday, 06 February 2012
The occassion was marked by around 200 people. (© UTV)
Five people were shot dead - four men and a boy aged 15 - at Sean Graham's on the Ormeau Road in 1992.
Around 200 people turned out on Sunday to mark the occasion, which included a minute's silence at exactly the time the attack was carried out.
The memorial stone bears the names of those who were killed by the two gunmen, who carried out the attack using a rifle and a Browning pistol.
No-one has ever been convicted of the murders.
Tommy Duffin, whose father was one of those killed, says many questions remain unanswered.
"It was an atrocity that definitely could have been avoided," he told UTV.
"All the families are looking for is truth, they're not looking for anybody to be locked up they just want the truth.
"If they get the truth, this will be put to bed."