My 'struggle to understand why': Angela Sharkey
Angela Sharkey, who lost her husband and two children in the fire, issued a lengthy statement after the jury returned their guilty verdict.
Mrs Sharkey was the only family member to survive the blaze.
In her statement issued through Police Scotland, she said: "For almost two years my life, and the lives of many others affected by the tragic events in July 2011, have been on hold. We have all had to do our best to come to terms with the fact that we have lost three very special people in a horrific way.
"Personally, knowing that the people responsible are being prevented from carrying out such a crime again will help. I still struggle to understand why they felt it necessary to do what they did to my innocent children but I will have to learn to live with that.
Love and support
"I would like to thank my family, friends, and work colleagues for their love and support which they have given me unconditionally since day one. I am sincerely grateful. I also want to thank the people who came forward and spoke to the police.
"I would also like to thank Mr McGovern and his team for their dedication to the case. For almost two years many of them have worked constantly on getting us where we are today, they too have families of their own and understood how important it was to get the right result. The Crown Office and procurator fiscal staff have also worked incredibly hard. I sincerely appreciate all the hard work which all these people have put in.
"The emergency services who attended on that awful morning are often in my thoughts. Again, they too have their own families so I know it must have been very harrowing for them to have to remain professional and carry out their duties. I am forever in their debt for their efforts in trying to save us. The hospital staff who looked after us are very special people and without them I would not be here at all.
"Finally I would ask that myself and my remaining family have our privacy respected as we try to rebuild our lives."