Case closed!

"What other question? "

Serena asked hesitantly. 

"You see Mrs Serena, according to your statement, you immediately went to the full glass window to look outside after hearing Dr Watson's scream and saw him lying on the ground. You also saw Ronnie running away from his dead body covered in blood, right? "

Serena nodded, her eyes fixed on Max as he continued to lay out the details of her own account.

"Well, here's the interesting part," Max stated, his voice taking on a more measured tone.

"If you really were standing at the window like you said, then you must have seen the person who was standing on the other side of the road under the tree, right? Because I checked it myself and it's impossible to ignore if someone is standing there, not when you clearly followed Ronnie's figure because this third guy was only standing a few steps away from him. "

"I.... I..... Well.... "