Please write a letter of condolences on the death of a frien

Dear XXX:　　We are greatly shocked by the painful news of the passing away of your grandmother。It all happened so fast as if I blinked and she was gone。In my memory,she was a very fine lady,well-loved and admired by all of us,especially me and my familly。I quite understand how you are feeling now,but anyway,you are still in duty bound to look to your own health and take care of your family。　　My family and I send our heartfelt sympathy。　　Warm regards　　XXX