Charity and Brett leave town, and while they are gone, Cujo kills Gary, and eventually Joe as well. Donna, home alone with Tad, takes their failing Ford Pinto to Joe for repairs. The car breaks down in the Cambers' dooryard, and as Donna attempts to find Joe, Cujo appears and attacks her.

Does Cujo kill anyone?

When Donna and her young son, Tad, drive out to the home where Cujo and the Cambers live, in order to fix Donna's car, the gentle Cujo, now crazed by the disease, attacks & kills the Cambers' neighbor, Gary Parvier. ... Camber unwittingly backs himself into a corner and Cujo suddenly attacks & kills him too.

Did Cujo kill Joe?

Joe goes to the Pervier home to check on Gary before they leave for Boston, only to find him horribly mutilated. He finds a pile of dog excrement in the hallway and suddenly realizes Cujo has gone rabid. Before Joe is able to call authorities for help, Cujo attacks Joe in Gary's kitchen and kills him as well.