chapter 249 Undercover under investigation

Based on our observations over a long time, Kelvin's casino should have had over a billion in gambling funds. Why was it suddenly empty? Did he get wind of something and move the money beforehand? Our operation was very secretive; it's impossible that there was a leak.
Besides, if he knew, he should have closed the casino in advance or at least fled. However, we found him unconscious in the vault."
Tracy was puzzled as she spoke, unable to understand the situation.
Han knew the answer but...