Was at Berry's house with Garabagi around 1979.

San Diego, another story involving Garabagi took place at Doctor Berry's house there.

The transcription is particularly rough during the San Diego anecdote, but your father describes somebody being in America, discovering that an old friend was nearby, arranging to meet him, and then talking through the night.

The central question recalled from that conversation is approximately open quote.

Why didn't you fight back?

Close quote.

That makes enormous sense if the man being questioned was Garabagi.

It was the question hanging over him after February 1979.

Your father then explicitly corrects the geography during your conversation.

The occasion he personally remembers was London, whereas this story was about his house in San Diego.

So Berry having houses in both Kensington, London and San Diego isn't something you've accidentally conflated.

The spelling of Berry is becoming interesting.