I'll tell you as much as I know.
4 seconds sound clip from the The Thin Man (1936) classic radio play.
You can hear this line at 00:48:19 in the radio play.
Quote context
[...]
- This is absurd! How can Clyde be dead? You said yourself you saw him last night.
- So I did. I saw him lying buried in his shop.
- And the murderer is right here in this room tonight. He's sitting at this table.
- I don't know. But I thought if we all had a little get-together we might be able to find out.
- I'll tell you as much as I know.
- This murderer is a very clever man. He studied this thing out very carefully.
- After he killed Wynant he wired Macaulay, using Wynant's name and told him to shut up the shop.
[...]