The jury took only 50 minutes to return the verdict, which some lawyers said was a relatively short time for a decision in a triple murder case.
Sentencing dec 16
Perry, 34, who has been in custody since he was arrested in 2005, will be sentenced in the Home Circuit Court on December 16.
The case had to be transferred from St. Mary to Kingston because it was felt that Perry would not get a fair trial as a result of the reaction from some residents in the parish to the brutal slaying of the children.
Perry could be sentenced to hang because he was convicted of three counts of murder, which in law, attract the death penalty.
Insufficient evidence
He was previously charged with murder in another case but was freed because of insufficient evidence.
Sonia Bailey Williams, mother of the three children and cousin of Perry, attended court daily. She was at church the night Perry killed her children.
Asked by The Gleaner how she felt about the outcome of the case, she said she was happy that Perry was found guilty of murder and not manslaughter.
Suffering from stress
Williams said she was suffering from stress and still had sleepless nights because of the brutal death of her children.
She said she was glad the trial was over because sitting in court and hearing the evidence was very traumatic for her.
Prosecutors Lisa Palmer Hamilton and Melissa Simms led evidence that the three children, 13-year-old Sue Ann Gordon, 15-year-old Dwane Davidson and four-year-old Shadice Williams, were fatally stabbed between January 27 and 28, 2005.
There was no eyewitness to the triple murder but the Crown relied on Perry's caution statement to prove its case against him.
Perry had said in a caution statement to the police on February 8, 2005 that a voice told him to kill, and he stabbed the children and buried the murder weapon. He took the police to the spot where the knife was buried in Kilancholly.
Perry, who was represented by defence lawyer Linton Walters, chose not to say anything in his defence.
He told the court that because he could not read his prepared speech from the witness box, he would remain silent.