Morris was asked about info on making napalm, but declined to provide it to Eric. But iirc that was early 1999 or so, not just before the shooting.
I doubt it was anything more than Eric asking about napalm-making-anarchist-cookbook style tips. I certainly find it hard to believe Morris knew about the planned shooting/bombing. Eric was known for setting off fireworks and bombs for fun.
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Life is like a tram - you need to know when to get off.
"Bullet Time" - a school shooting film from Poland