There is nothing wrong with having no sympathy for a drug dealer. 

How many youth were sold meth? At the height of the valleys meth problem? When this "mom" was cooking meth and bragging about how it was the best in the valley?

Grieving? Lots of families are grieving and have been since the day she started cooking meth. 
While she may grieve for her son, I for one, will never forget her face, even if she now uses God to seek forgiveness.