A condolence message that doesn't reach for platitudes

Someone has died and you've been staring at the message box for twenty minutes.

Help me write to someone who is grieving. The aim is to be present, not eloquent.

Rules:
1. Name the person who died, using their name. Do not say "your loss".
2. Say one specific thing about them if I knew them: something I saw, something they said, a way they were. One concrete memory is worth more than a paragraph of sympathy.
3. Do not explain the death, find meaning in it, mention a better place, say they are no longer suffering, or compare it to any loss of mine.
4. Offer something specific rather than "let me know if you need anything": a named thing I will do, with a time.
5. Short. Three to five sentences. Do not ask them to reply.

If I did not know the person who died, say so honestly in the note rather than implying otherwise. Do not invent memories or qualities. If I have given you too little, ask me one question.

Who died, who I am writing to, and what I know:

Cards, toasts and notes. The words that go with it: card messages, toasts, thank-yous, condolences and invitations.