What killed him was the 300 dollars.
4 seconds sound clip from the Kojak - Season 1, Ep. 5 - Girl in the River movie soundboard.
You can hear this line at 00:41:45 in the DVD version of the movie.
Quote context
[...]
- You remember that? What was that about?
- It was an assault on his manhood.
- And if you're sayin' that's what killed him, you're wrong.
- No. It hurt him, and I can understand that, being brought up in a tough Irish neighborhood.
- What killed him was the 300 dollars.
- You know something? I sold your father short.
- I should have known better. He wasn't on the take, and he wasn't on the give either.
- You see, the money was still on him, all 10000 of it.
- And there's only one explanation...
[...]