Having lost their 15-year-old son Quamari to knife crime, in this 3rd and final part of the episode Paul Barnes and Lillian Serunkuma talk about the sentence handed to the boy who murdered their son,  who they think is to blame for Quamari's death and how they felt about an apology letter sent to them by the Mother of their son's murderer. 
The episode finishes with Paul and Lilian talking about the things they are doing to keep Quamari's name alive!