I don't want to seem like an idiot, but when did exactly Eric and Dylan start planning for "NBK"? I know it was after the van accident, but do you know the exact month? As always, thanks!
The window is February to April of ‘98 when the two both thought about it individually and wrote about “going NBK” in their journals. February was a particularly rough month for Dylan as he got into a few bumpy scraps with the police - freshly after the van theft arrest. He got two driving tickets - one of them was written up by Officer Walsh, the dude that booked both Eric and Dylan for the van theft arrest. He also got suspended in school for defacing a freshman jock’s locker in retaliation for being harassed. Anyway, Dylan was mulling over going NBK with someone in February and Eric mentions that NBK is something he will be doing by April in his journal. I’d say that March of ‘98 is when they connected on this together and had a meeting of the minds. This is when the two had been paraded before a judge in court and then were indoctrinated into the Diversion Program. It was a major humiliation for both of them and they were under close watch by their parents. So, their two man war against everyone else with ultimate revenge and payback was definitely on their minds in spring '98 - 14 months from April 20th. The cops would’ve been at the top of their list of revenge along with certain individuals in school. Playing up the facade of obedient teenage boys who kept their nose to the grind, jumped through all the right hoops and pretended to be reformed by the law would be sweet revenge. On the holy morning of NBK, they’d catch the cops off guard and would be having the last laugh as to who had really been in charge all along before ending it all with a big ADIOS FUCK YOU!