V
This is where I always run into a major problem. Less than one dozen men involved in the Watergate scandal and it couldn't be kept secret, how do you expect me to believe that an event like this that would have involved over a thousand conspirators (first responders of all brands, hospital staff, coroners staff, "victims", and just regular joes in the neighborhood) and not one of them has come forward for their ten minutes of fame.
I think the Orlando shooting is quite legitimate, but to not believe in any conspiracy theories because a dozen men in watergate couldn't keep a secret is not the best logical approach to discerning the truth behind said conspiracy.