Can you tell me how you would know it's bang on with accuracy? IIRC, it was Australian press that first broke the news about Lucas's death (and a bit about how he died). Does G & M have a competitor of note?
It's my impression that G & M adhere's pretty closely to what is officially released by the government. Are there examples of it doing investigative journalism? When Karla Homolka began her new life, I"m not sure G & M ever covered it (despite other news outlets finding her with three kids). I ask because if G & M is always accurate (but does not cover many stories), that's not necessarily a good thing.
Also, if G & M is offering the same stories, I think the wikipedia articles should reflect the initial journalism, which right now, is attributed (in the Homolka case) to other outlets.