Here are some sad death quotes that I found:

- "Only a moment you stayed, but what an imprint your footprints have left in our hearts." – Dorothy Ferguson
- "Death leaves a heartache no one can heal, love leaves a memory no one can steal."
- "Those we love don’t go away, they walk beside us every day. unseen, unheard, but always near, still loved, still missed and very dear."
- "In life we loved you dearly, in death we love you still. In our hearts you hold a place no one else will ever fill."
- "What people seek when the depths of despair and death are upon them may be the silhouettes of the ones they love." – Markus Zusak

I hope these quotes help you in some way.