I agree with stilltrue and hercules on this one.
She should absolutely not have the right to know where the killers are. That doesn't mean that if I was in her position I wouldn't want to personally kill them myself.
But reading the article I feel incredibly sorry for her. She obviously hasn't got any sort of closure. She will never forget or get over what happened to her son, of course, but ideally she should be able to learn to live with it and it doesn't sound like that's the case. I wonder if she has had much, if any, counselling?
My husband was killed in a brutal, horrific way. Now obviously that's not the same as losing a child, which is the worst thing that can happen to you, but I have an understanding of what it feels like to have a loved one murdered. The people who killed my husband are dead themselves, so I can't say how I would react if they were free, rehabilitated and walking the streets (but then again they were grown men not children, and I do think that makes a difference).
3 years later, I'm not over it, I feel an incredible amount of anger to the people who did this, I miss my husband immensely. But I have learned to live with it. I wish Jamie Bulger's mother could do the same.