Iron Lung Mystery

Elmer and Juliet are called to help an attorney who is settling the estate of a deceased victim of polio, who had been treated in an iron lung at home.  At the time of his death, he was visited by his estranged brother.  Both men were found dead.  The estate will be bequeathed to the family of the brother who survived the other, even by minutes, so Juliet and Elmer must determine who died first. B...