How does the author describe her impressions of her father's death in Chapter 2?

The author claims that there is no definitive proof that her father committed suicide, but that there is little doubt in her mind that he did. He was hit by a Sunbeam Bread truck on a highway, but Bechdel claims that he intentionally ran in front of the truck. She bases these assumptions on the fact that her mother had asked for a divorce two weeks prior and that her father's repressed homosexuality haunted him.