Maria is currently undergoing her vacation. By vacation, it means that she I currently hunting down the bastard that did that to her son. It seems that the bastard stayed low after the incident with Adrian happened.
She is currently searching for him using the few connections she has with the underworld. The world might have become advance but that did not mean it became cleaner. You could even say that they become more organized and more secretive since law enforcement has become tight.
Fortunately for Maria, the person she is searching for is not afraid of the law enforcement because he acts as a legitimate businessman for the underworld. He has many businesses that are considered as his subsidiary, so she knows where to find him.