The murderer was found

"There's someone there, and he looks seriously injured. Brother Yang, have you captured him?" Jiang Mu asked casually. His unintentional words almost made Blanche Martin and the other two scream out in surprise. Only a few of them knew that the killer was hiding in the basement, but Jiang Mu discovered it as soon as he arrived. How did he do it? "Jiang Mu, how do you know there is someone hiding in the basement?"Blanche Martin asked blankly. "I heard it. The sound shows that he is in pain and...