Joe Camber

Joe Camber shrieked. He remembered Gary. He covered his throat with one hand and tried to grapple with Cujo with the other. Cujo backed off momentarily, snapping, his muzzle wrinkled back in a great humorless grin that showed teeth like a row of slightly yellowed fence spikes. Then he came again.

Cujo directly attacks Joe Camber, supporting the identifying owner-killed-by-his-dog retrospective in Mrs. Todd’s Shortcut.

The same name William Wolfe of the SLA had taken, although Donna found it impossible to believe that Joe Camber had named his Saint Bernard after a radical robber of banks and kidnapper of rich young heiresses. She doubted if Joe Camber had ever heard of the Symbionese Liberation Army.

Mechanic, Charity's husband and Brett's father; Cujo's owner.

But folks are still not done talking about Joe Camber, who got killed by his own dog. Well, it don’t matter. It’s just that they are different racecourses we run on. Summer people are trotters; us others that don’t put on ties to do our week’s work are just pacers.

The Castle Rock man explicitly said to have been killed by his own dog. This identifies Cujo’s owner Joe Camber, whose attack by Cujo is directly narrated in Cujo.

… killed those women, and they haven’t forgotten the dog, either, the one that came down with rabies and killed Joe Camber and the old rummy down the road from him. The dog killed good old Sheriff George Bannerman, too. Alan Pangborn is doing that job these days, and he’s a good man, but he won’t never stack up to Big George in the eyes of the …

Joe Camber is explicitly recalled as a victim of the rabid dog that also killed Sheriff Bannerman. This source names the same Castle Rock owner and event that existing Cujo evidence already identifies.