[freekitty]

They all had the means; but the government is the only one that has the full ability to coverup.

[mlo]

But it’s not covered up. The crime was solved at the time.

[RedMonqey]

They all had the means; but the government is the only one that has the full ability to coverup.

You speak of The Government as a large monolithic being instead of a organization comprising of hundreds of thousands of different individuals with differnt motives and beiefs.

An conspiracy of which you speak would be of such proportions as it would involve hundreds of people who:
....never got caught.

.... never whispered a word to anyone.

....never wrote a book, which would make millions nor quoted directly by credible sources.

In other words, the prefect crime.

Or a complete fantasy.

Occam's Razor, baby. Occam's Razor