Warning: This article contains spoilers forThe Watcher.
Between the slayings, we see John eating a sandwich and washing it down with a glass of milk.
He was arrested in 1989, convicted and sentenced to five life terms in prison.

‘The Watcher’ episode 3 murder sequence involving John Graff (Joe Montello) is based on the real John List family murders of 1971.Netflix; Bettmann/Getty
He died in 2008 as a result of complications from pneumonia.
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Naomi Watts and Bobby Cannavale in ‘The Watcher.'.Netflix