what happened to his sister<\/a>, there was \u201csome misinformation out there on the internet\u201d with people thinking his family tried to \u201ccover it up.\u201d<\/p>\nIt was then that the American Idol <\/em>judge revealed his sister\u2019s cause of death for the first time. <\/p>\n(Disney\/Stewart Cook) <\/figcaption><\/figure>\n\u201cThere is a very, very small percentage of people that die for no reason in the world,\u201d he said. \u201cAnd it\u2019s called sudden death syndrome, and that\u2019s essentially what they described my sister\u2019s death as. She was in her home doing her laundry, and it was like somebody just turned the switch off on her, and it was just tragic beyond words.\u201d<\/p>\n
Luke revealed that it took some time before his sister\u2019s cause of death could be determined. \u201cObviously, we wanted to know what had happened, because there [were] so [many] unanswered questions,\u201d he explained. \u201cAnd we wanted to know, could there be a family history of something that her children might have or may have?\u201d<\/p>\n
While \u201ctypical findings\u201d of an autopsy for someone of Kelly\u2019s age might have shown an \u201caneurysm or an embolism or a blood clot,\u201d the singer revealed that all of the findings were \u201cinconclusive\u201d when it came to her death. <\/p>\n
\u201cShe had a pretty severe orbital bone injury,\u201d he revealed. \u201cSo whether she fainted or not, I think she may have went into the floor and kind of knocked herself out.\u201d<\/p>\n
Luke noted that if someone had been there with his sister, her chances of surviving whatever happened to her might have been \u201ca lot better.\u201d<\/p>\n
\u201cShe really was everything in our lives,\u201d he continued. \u201cShe was a mother of three children, and she was the best mother you could ever dream of. And we all leaned on her for so many things, and it\u2019s hard to really wrap your brain around her being gone.\u201d<\/p>\n
Seven years after Kelly died, her husband, Ben Cheshire, died of a heart attack, and Luke and his wife, Caroline Bryan, adopted their three children \u2014 Jordan, Kris and Tilde. Luke and Caroline are also parents to sons Thomas \u201cBo\u201d, 17, and Tatum \u201cTate\u201d, 15.<\/p>\n