After hanging up the phone, Zack entered Griffon’ car under disguise.

“Mr. Griffon, I’ve almost finished investigating the cause of Simon Knight’ death,” said Zack.

Griffon put down his phone, feeling tired. He lifted his chin slightly, indicating for Zack to continue.

“Simon Knight did die of a sudden brain disease caused by overwork. I’ve carefully followed up with all the doctors,nurses, and everyone who had contact with him, as well as the medication he used. Their accounts ...