Here's the difference, SB. In the Magnotta forum, the psych thread was opened when a diagnosis was made public.
Websleuths Crime Sleuthing Community - View Single Post - Armchair psych profile and personal background, #2
I wasn't a WS user before the Bosma case, but for the Magnotta case I recall very well that by the time he was extradited to Canada, we knew he had some mental health issues in his past because of certain conditions in a sentence from a prior conviction, relating to treatment program, counselling and taking prescribed medication.
http://www.cbc.ca/news/canada/story/2012/05/30/luka-rocca-magnotta.html
So even though we knew no details, it was pretty clear there was a history so the discussion doesnt come out of left field. He also videotaped the bludgeoning death, making the public (or anyone sick enough to watch) witnesses of imbalanced and sick, sick behaviour.
So far as Vince Li goes, his was a question of mental health from the start, IMO. He was a quiet and hard-working man who boarded a bus and repeatedly stabbed, then decapitated and cannibalized a man in a calm and robotic fashion, according to a bus full of eyewitnesses. When he first attended in court he said nothing but repeatedly wished someone would kill him.
http://en.m.wikipedia.org/wiki/Killing_of_Tim_McLean
A big difference is we know EXACTLY how gruesomely the victims of the above two murderers died, and by whom, by the time anyone was discussing the murderers' mental health on any message boards. JMO
In this case, we have not been made aware of an eyewitness to the murder or a video of this murder, to a) positively identify MS and DM as the
murderers (not just the test drivers) and b) to confirm the exact circumstances leading to the death (was it violent?), nor is there any actual proof of history of mental health issues for either of the accused. With none of the above in play right now, I think it is pointless to go there. MOO.
I didn't follow, and know little about RW so I won't comment on that one.