Clues (2)

"Could it be… somebody else knows what they are doing and killed those girls in order to disrupt their business in prostituting students?"

"Possibly. Let's gather more clues later." Lucien gave a sideway glance and accidentally meet Lieutenant Lim's eyes. Lucien acted as if he doesn't know anything and hung his head. 

Keith also noticed many pair of eyes watching them. First is Lieutenant Lim's side, and the second is the cleaning aunt who has been moping the floor since earlier. The third is the small group of boys in Stella's class. 

Their bodies weren't exactly big but judging by their varsity clothes and their last names printed on the back, they are basketball players. All athletes. This made Keith frown and he tapped Lucien's leg with his finger. 

"Look at there. Do you think they are part of the club of Mr. Patill?"