FYI, the financial aspects of "the value in killing Michael" are already being discussed here:
http://www.mjjcommunity.com/forum/showthread.php?t=72231
The key to at least the financial aspect of this has to do with the questions,
was or was not Michael physically able and prepared to complete the fifty concerts? If he was, then the concerts would have made millions for all concerned. If he was not, then he was worth far more dead than alive (TII movie, album sales, DVD sales, memorabilia sales, the eventual creation of Neverland as a theme-park, and much more.) Profits have gone to the estate, to AEG, to Sony, and to Regal Cinemas, with Colony Capital waiting in the wings for the creation of a Neverland theme park.
We don't really know what his physical condition was. There are people who have gone-on-record speaking for both possibilities. . that his weight-loss was too much to sustain the effort, or that he "had the body of an astronaut" (this from AEG, who also say they never saw the actual medical report). There is also confusion about whether the insurance physical actually happened. It's either "five hours of grueling tests," or "the doctor was turned away at the gate" and the physical never actually happened, and one was scheduled for July in London. I have not seen definitive information yet for either position. . . he was healthy, or he was not.
As far as proof of conspiracies is concerned, at least during the trial there was proof of an elaborate plan to "get him." Among other things, see past writings about (and quotes from) a person named "Sundaram," in Santa Barbara. But that is past, now. Anyone who wants to can hunt it up, from an interview on MJJF Radio. It's a proof that conspiracies HAVE HAPPENED to Michael.
Carry on,
Vic