Durkin argued that Daoud suffers from delusional disorder, a condition that has worsened in recent months, especially after one of his cellmates at the Metropolitan Correctional Center in Chicago committed suicide in January. In testimony Friday, a defense expert said he worried Daoud himself may be suicidal, but Daoud downplayed the impact of the cellmate's suicide, telling the judge that he reacted in the way anyone would after a loved one died.