Who ultimately proves Denny's innocence in court?

Enzo, the dog who serves as the narrator of the story, plays a pivotal role in proving Denny's innocence in court. His unique perspective and understanding of human behaviors allow him to witness key events that are crucial to the case. Enzo's loyalty to Denny and his determination to protect his owner drive him to help articulate the truth through his observations.

Throughout the narrative, Enzo demonstrates intelligence and a deep emotional connection to Denny, which enables him to perceive and recall critical moments that reveal Denny's character and actions during the events leading up to the court case. This narrative mechanism portrays the bond between a pet and its owner, emphasizing how Enzo's insights contribute to the eventual vindication of Denny, showcasing themes of loyalty, love, and the pursuit of justice.