What does Jenny's father do after learning that Bob Sullivan has been implicated in Jenny's rape in the novel, All Is Not Forgotten?

When Tom learns that Bob has been implicated in Jenny's rape, Tom gets angry and sets out to beat him with a baseball bat. Instead, he arrives at the dealership and finds the secretary's father is beating him with a crowbar. Tom calls 911 for help and reports that Bob is dead instead of alive. He watches Bob die, waiting for paramedics.