Coroner: B.B. King Died From Natural Causes

B.B. King

A coroner's investigation found no evidence B.B. King was poisoned, an allegation two of the singer's daughters made soon after his death.

"We ruled it Alzheimer's disease as the cause of death with other significant contributing factors," John Fudenberg, the coroner in Clark County, Nevada, told CNN on Monday.

Those contributing factors include coronary artery atherosclerosis, type 2 diabetes, hypertension, coronary heart disease and cerebrovascular disease.

Fudenberg said the investigation into the 89-year-old King's death is now closed.

Soon after King died May 14 in home hospice care in Las Vegas, two of his 11 adult children alleged he was poisoned to death by his closest associates. The daughters said two of King's associates gave him medication to induce diabetic shock.