I just found this today. Maybe this is the speech that got him killed? In it, he makes some strong accusations of the entire U.S. government supporting Hitler and some other things saying that the government is exploiting the economy.

Here is the audio:

http://www.youtube.com/watch?v=b80Bsw0UG-U

Here is the transcript to read-along:

I also seen this. http://www.democraticunderground.com...ss=389x2840215