It's not the Comair President's job to release facts about the accident. Like it or not, although he is certainly concerned about the well being of the passengers, crew and family members, an additional major concern of his is to protect the assets of the company and stock holders. That's why he's "tap dancing" around the facts (many of which have yet to be CONFIRMED by the parties that have the AUTHORITY to do so).

It's the NTSB's job to find out what happened and then release those facts to the public. Keep in mind also, that if Comair were to leak/release information about the accident that falls under the "scope" of the NTSB's domain, the NTSB can eliminate the company's role in the investigation (IE cut them as a "Party to the Investigation").

Finally, we all don't know "what happened." We all know what "likely happened." Aside from the FACTS that we can acertain from the news, we don't know the events that led to the accident until the boards findings are released at the end of the investigation.