A search of the safehouse turned up Zubaydah's personal 10,000-page diaries, in which he recorded his thoughts as a young boy, old man, and at his current age. What appears to be split personalities is how Zubaydah was piecing his memories together after his 1992 shrapnel head wound. As part of his therapy to regain his memories, he began recording the diary that detailed his life, emotions, and what people were telling him. He split information into categories, such as what he knew about himself and what people told him, and listed them under different names to distinguish one set from the other. This was later incorrectly interpreted by some analysts reviewing the diary as symptoms of split personality disorder.