He was hospitalized in 1992 and 1993 with pneumonia .
Benson suffered poor health in the last years of his life from the effects of blood clots in the brain , dementia , strokes , and heart attacks , and was rarely seen publicly in his final years .
Benson was hospitalized in 1992 and 1993 with pneumonia .
Benson suffered poor health in the last years of his life from the effects of blood clots in the brain , dementia , strokes , and heart attacks , and was rarely seen publicly in his final years .