chapter 586 Got a clue

Originally, Mateo's idea was to conduct a screening with Grace.
But the current situation tells Mateo that the screening is no longer necessary, as most of the methods have already been used by the Northwest Lord.
Even the relationship network of Louis and his wife was thoroughly screened by the Northwest Lord. All the suspicious people were investigated, but nothing was found.
The three of them left the room and walked around the neighborhood.
Although the neighborhood is old, even now,...