Knife of Dreams book tour 13 October 2005, Harvard Coop - Allen Bryan reporting

RJ: (on Asmodean) "I'm not going to give you a chapter to find." However, he emphasized OPPORTUNITY as the key to knowing Asmodean's killer, even over motive (which got a mention).

Knife of Dreams book tour 11 October 2005 - WinespringBrother reporting

Q: What criteria are most helpful for investigating Asmodean's murder, out of motive, means, timing?
RJ: Timing is what you should focus on. (He repeated about how someone on the internet figured it out.)

Not once but twice he tells us that the timing of the murder is the key to figuring it out. So no it's not a false statement... RJ emphasized opportunity over motive. End of story.

Premeditation implies that the killer created the opportunity. Which RJ makes clear was not the case here.