Thanks for that work.
Frazier's Feb 1969 Clay Shaw trial testimony includes:
Q: Mr. Frazier, did you make any determination at that time from the noises that you have just reported as to what location they came from?
A: They appeared to me to come from down towards the triple underpass.
Q: Would you leave the witness stand once more and show me the area where the noise sounded to you like it came from?
A: Here is your triple underpass right here.
THE COURT: Would you repeat your answer?
THE WITNESS: I said it sounded like it came from down in the area of the triple underpass.