How was Steve Harmon proven guilty in Monster and on what page?

In "Monster" by Walter Dean Myers, Steve Harmon is proven guilty primarily through the testimonies of witnesses and the prosecution's argument that he participated in the robbery that led to the murder. The evidence against him includes the fact that he was present at the scene and the testimonies that link him to the crime. Specific page numbers may vary by edition, but significant details about his guilt can be found in the latter sections of the book, particularly during the trial scenes. Check the trial chapters for a detailed account of the evidence presented against him.