While Vivian was sleeping, Ethan and Brevard were discussing about Ava and the patient.

Brevard said, "I have found some clues, but the direction of the investigation is strange, and it's very difficult to follow through."

"Oh?" Ethan frowned. "Tell me what is going on."

"Here's the thing..." Brevard slowly explained. "The old man who is hospitalized used to be a soldier when he was young, and I found out that their family has a military background. His son was a police ...