"Tiger needs to explain everything, now" Why?

"Tiger needs to explain everything, now" says Steve Elling CBS Sports.com Senior Writer. http://www.cbssports.com/golf/story/12592105/tiger-needs-to-explain-everything-now.
This is the view of  many other journalists and the public. Tiger Woods' car recently crashed into a fire hydrant and a neighbor's tree in the wee-hours of the morning just after he left his house. Tiger Woods still hasn't given any explanation for the incident to the police the media. Speculations about the cause are being made, including his alleged extra marital affair.
The fancinating aspect of this story is that for the first time, the media has not been able to access the so much craved insider information of this very public figure and his immediate family. Not even the Police has been able to access the information sofar.  The media feels that Tiger Woods is denying the public  information it has a right to know. One wonders whether or not Tiger Woods' First Amendment Constitutional rights are being violated; or whether Tiger Woods' rights cannot take precedence over his status as a public figure, and therefore has no right to withhold information that the public requires of him. 
It may only be necessary that he release an explanation for this accident to the media if any criminal charges are filed against him, but sofar this is unlikely because he has been cleared of  any alcohol or other crime-related involvement at this time. It's at his own discretion that he may disclose the cause of the accident to the public and the media, but he shouldn't feel obligated to do so. His choice to withhold this information may be for the safety and privacy of his  family- safety from tabloid and traditional media gossip.