How did detective karyl manipulate Steve during the investigation of the crime?

Detective Karyl manipulated Steve during the investigation by exploiting his emotions and vulnerabilities, using strategic questioning to elicit confessions or inconsistencies in his story. She created a sense of urgency and pressure, making him feel cornered and more likely to comply with her demands for information. Additionally, Karyl employed psychological tactics, such as building rapport and then abruptly shifting the tone to instill doubt and fear, ultimately leading Steve to reveal crucial details about the crime.