From memory, this person seemed to best match Jiang Yunlong's description; four phone calls, an old classmate who had stayed in the same class with me from primary school to high school. Apart from that kid Chen Yan, there could be no one else. But could he have really called me from abroad? Even if he did call me, how could it be linked to national security? Could it be that he got me involved in his troubles?
With this in mind, Zhang Ziwen looked at Jiang Yunlong and said, "I do recall someone who matches your description. Yes, a classmate did call me four times. The timing aligns with what you stated. However, I'm under the impression that he wasn't calling from abroad."
"What's his name? Do you remember the content of your conversations?" Jiang Yunlong let out a breath he didn't realize he'd been holding. At least he remembered, but a special interrogation might still be necessary.