Stats usually range between twenty and fifty percent of the population-- those who don't buy the official 911 report of what happened. Truthers talk about false flag operations and alternate explanations for why the WTC towers collapsed.
This report from Obama-- that Bid Laden was tracked, killed, then buried at sea-- may satisfy some, but it will leave millions very unsatisfied. I can't imagine an explanation for ditching the evidence that will be satisfactory.
On the contrary, the missing hard evidence will surely raise more suspicions than ever. Of course, the mainstream media will squelch and mock those who again raise the truther question-- "Was Bid Laden even involved in the 911 attack?"
Any discussion of the suspicious nature of the dumping of the body will surely be attacked as crazy conspiracy theorizing. I wouldn't be surprised if the birthers take up the question. They need something to do now that the official release of the Obama long form birth certificate has made them look like idiots (well, even more like idiots.)
Put the truthers and the birthers together and you may actually have a majority of Americans who don't believe that Bin Laden was killed by American troops. What? Don't believe the reports of the military? Two words; Pat Tillman.
I'm in no position to know if the report of the death is true or not. I doubt that there are many who are.
Here's a possible scenario.
Obama appointed CIA head Leon Panetta hand picks a CIA operative to lead an intel team to find Bin Laden in Pakistan.
The operative reports to his team that the resources the CIA has cultivated in the field have found signs of Bin Laden. He reports back to his team and encourages the sources to check back further.
The sources provide further evidence that Bin Laden is indeed in hiding in Abbottabad, about 40 miles from Islamabad... in a compound.