Was his real name Aaron or Roy ?.

His real name was Aaron Stampler.

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If I cannot smoke cigars in heaven, I shall not go!

we are not sure of his background but it appears he was either a friend of O'Donnell 10 years before or worse still was also a victim of pedophilia from the same bishop [the bad thing Marty did in covering up that issue].

whatever, he made it his ambition to get even where the law FAILED as it always does with real pedophiles as they are a "protected species".

so 10 years later he comes [back?] to do the deed on the bishop so I would imagine that both Aaron and Stampler were made up names and that probably Roy was too.

all that mattered was bishop did not recognise him.

same thing happens in The Sixth Sense where Vincent comes back at age 19 or so to get revenge on the shrink who "could not help him" [code for put him on Zoloft and spoilt his whole life] 10 years before.

part of Vail's failure [because of ego] was to not do a full check on his client's background, especially if the version he gave was just fiction, but after doing some soul searching with aid of a bottle of whiskey he does revisit the "bad thing" case and HAS O'Donnell sitting there in court like a ghost to scare the bejesus out of Shawnassy geyser.

http://www.kindleflippages.com/ablog/

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