Dear …
It was with the deepest sadness that I learned of __(Name’s)__ untimely death and I extend my most heartfelt sympathy to you and your family. There are scarcely words to describe how shocking and tragic such news comes to a person; so many unanswered questions that clench at the heart.
I can only imagine how incredibly difficult this is for you and your family and I genuinely share your sorrow. May you be comforted with the peace of knowing that you are wonderful parents and that __(Name)__ was truly fortunate to have been able to call you Mom and Dad. You were the blessing to __(his/her)__ life.
Though it is true that we may never know why… one thing we do know is that__(Name)__ touched the hearts and lives of many people while __(he/she)__ was with us. __(He/She)__ was most surely the giver of joy to all those who had the privilege of knowing __(him/her)__. __(He/She)__ will be greatly missed by all.
Please accept my deepest condolences for your great loss. We all grieve with you.
With sincere sympathy,