Did their lives revolve around Kathleen?
Diana said coldly, "I don't know what you're talking about."
She turned around and was about to leave when John pulled her back. "Did you plant the bug in Kathleen's apartment?"
After much thought, the only person who could do that was Diana.
She was the only one who had always been hostile toward Kathleen, secretly trying to harm her.
Diana shook off John and frowned. "I don't know what you're talking about. What bug? I don't know."
"Are you still denying it? Do you think I don't know about your little tricks?"
"You've been spying on Kathleen, probing into her privacy, intending to harm her."
"Tell me, what is your motive?"
Seeing the doubt in John's eyes, Diana's face turned pale, and she said angrily, "I don't have any motive. I don't know what you're talking about either."
"What Does Kathleen's disappearance have to do with me? What right do you have to blame me?"