Phrases and words he uses and my thoughts:
"I had some things to attend to" (very formal phrasing, not the way a southerner would speak IME)
"Give me Leeway"
"Ducks lined up" (repeated exactly as "lined up" instead of saying "Ducks in a row" which is the phrasing I'm more familiar with)
"We've been through this road already" (Interesting phrasing instead of using "down this road" he says "Through this road")
"You're not my priest" (Indication of possible Catholic upbringing?)
"You're not my priest, you're not my doctor" (figure of speech used to basically say he doesn't have to tell them anything/it's none of their business?)
"I'm not going to cut you off" (When indicating he didn't want to interrupt the detective speaking? )
"I've always tried to live by the motto that "There's no defense against the truth"
"southern fire was roaring last month"
When talking about the fire he mentions: "rural area" and says "most people are signed up for the fire ______?" (Can anyone understand that exact word?)
Mention of "Journeyman Carpenter", "Unions", Professional Journeyman", "Works to code", and then talks about going to work for the Forest Service.
"It used to be driving through places like that if you had a pair of shoes and you were close to the fire you would get, what would you call it, you'd get volunteered. Park your car, mister, you're going to be a fire fighter"
(That's all I saw that was unique in his phrasing...The look on his face at about 3 minutes in when they confronted him about his aliases was a flash of sheer anger, IMO, though he tried to hide it and denied using those aliases.)