He had had an affair or he had an affair

Footage shot by one of the local TV crews that have camped outside Woods' home since the 27 November car crash showed a blonde woman being wheeled on a stretcher into the hospital.
Health Central is the same hospital where Woods was treated after he crashed his car last month.
Hospital spokesman Dan Yates said Ms Holmberg was released about 11 hours after she was admitted.
"She's in a good state and feeling much better," he told reporters.
Woods' car crash followed a story in a US gossip magazine that he had had an affair with a Los Angeles cocktail waitress.
The world number one golfer, a 14-time major champion, was later charged with careless driving and fined $164.
Woods' mother-in-law is governor of Gavleborg county in central Sweden.
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Is it necessary to write he had had an affair with a Los Angeles cocktail waitress?
I would write he had an affair with a Los Angeles coctail waitress.