Bob took a deep breath and seriously replied:
"We have also discussed this question, and the conclusion we reached is that the murderer most likely used food or drinking water to poison Vireness."
Luo An raised his eyebrows and then asked:
"Do you have any suspects?"
Bob glanced through the window at the female agent standing on the far left and said:
"Under Vireness's arrangement, Susan is in charge of our investigation team's daily meals; she is responsible for purchasing and handling all of our food and drinking water these past few days."
Luo An's expression remained the same:
"Do you suspect Agent Susan has poisoned her?"
"No, on the contrary, Agent Susan is the only one I can be certain has no issues."
Bob shook his head and solemnly answered:
"Exactly because Susan is responsible for purchasing and handling our food, that's why I'm certain the poisoner is definitely not her."
