Maybe the just writer drew his own conclusion because it was mentioned the person who came forward knew
both B&K. I suppose it could’ve been a teacher or another adult but more than likely it was a person their age who was given a open tiny window into the diabolical capability of the two.
“
The witness knew McLeod and Schmegelsky and believed the boys may have been involved in the murders," the police report says.
"This is the first time that police learned that McLeod and Schmegelsky may be capable of the murders which conflicted with original witness statements from family and associates."...”
https://www.cbc.ca/news/canada/british-columbia/schmegelsky-mcleod-homicides-manhunt-rcmp-1.5299115
As for the home search, iirc during the PC mention pertained to police seeking evidence of preplanning and/or motive? For example, early on the possibility of a manifesto was often speculated about, even here. But I don’t recall the RCMP stating anything about the nature of their internet or gaming pursuits in general.
Regardless, nothing written in his blog would be far out in left field, whether true or not IMO. B&K were merciless killers, far from “good boys”.