O.J. Confession?

From Topix

O.J. Simpson's publisher calls it a confession. The former NFL great, is releasing a book in which he apparently explains how he "could have" killed his wife Nicole Brown-Simpson, and Ron Goldman more than a decade ago. Simpson was acquitted of the charges in 1995. Now he has written a book entitled, "If I did It" which will go on sale in two weeks. He recently sat down with Fox News to talk about it. The interview will air in two parts on November 27, and 28.

"If" you did it O.J., how about why, or how?