Letters and a certified copy of the death certificate, sent to the life insurance co. before suit was filed, were insufficient to meet the Life Insurance Policy requirement of Due Proof of Death. The Plaintiff's claim that Due Proof of Death was presented during trial was rejected as too late, and an award of $1,001,000.00 was reversed by the Illinois Appellate Court in Tsichlis v. Country Life Ins. Co, Ill. App. 1st dist. 2018.