Question: He has interviewed other lawyers, alternate jurors, experts.
He has interviewed plenty of people.

Answer: yes

Question: The man didn't remember his name and wasn't able to explain where he lived.
The man had severe amnesia.

Answer: it is not possible to tell

Question: Luckily for New Orleans, his scheme was a remarkable success.
Fortunately for New Orleans, his plans came to fruition.

Answer:
yes