Secret den of a drug mafia or maybe an underworld king

"I'M ASKING YOU SOMETHING DAMMIT! DID SUYIN KNOW SOMETHING ABOUT HER DEAD CHILD?" upon not getting any reply from Gilbert, Tang Sui yelled. 

Gilbert's mouth twitched. Had it not been because he needs her support in the shareholders' meeting, he would have shown her her actual position. "I-I don't know."

"What do you mean you don't know?"

"It means as I say. I DON'T KNOW." he repeated, recalling her last conversation with Suyin in People's hospital where she had blatantly told him Gong Li's death had something do with her baby's death and she believes in revenge. "I don't know how much she knows. She was with Gong Li at his deathbed, that's how she started suspecting things."

Silence ensued. 

"Does she know about me?"