I actually found it a couple minutes earlier through the very useful character log thingy in Light's journal, though I'll definitely need the tags for other stuff (AND SHUT UP YOUR CHARACTERIZATION IS AWESOME).

I figure that, for manga readers, not knowing the major plot points of Death Note is like not knowing how Fight Club ended, since it's basically impossible to talk about otherwise ("Uh, it's about this guy who finds a notebook that can kill people, and, um, then some stuff happens. Yeah.") I'll assume that limited spoilers are okay because GAH I have no idea what I'd do otherwise.