In the spring of 2002, after more than a year in preproduction, I began work on "Real People Virtual Worlds," a documentary film exploring how people interact with each other in the graphically and textually mediated settings of online worlds. Along the way, I expected to interview people who make like they're elves or slay monsters or just hang out in virtual taverns with their virtual friends. And I did. What I didn't expect is that I'd stumble into a real-life murder mystery, complete with in