The men allegedly made off with pillowcases containing Simpson sports memorabilia . Several jurors said audiotapes of the incident and conversations between Simpson and others that were recorded surreptitiously before , during and after the heist made the prosecution 's case . `` It would have been a weak case '' without the tapes , juror Dora Pettit said . The jury of nine women and three men found Simpson and co-defendant Clarence `` C.J. '' Stewart guilty Friday of 12 charges , including conspiracy to commit a crime , robbery , assault and kidnapping with a deadly weapon . Simpson , 61 , could get life in prison . Sentencing is scheduled for December 5 in Las Vegas . Prosecutors alleged that Simpson , a former football star , led a group of men who used threats , guns and force to take the memorabilia and other items from memorabilia dealers Bruce Fromong and Al Beardsley . Four men who had been charged with Simpson cut deals with the prosecution and testified against him . One testified that Simpson instructed him to bring a gun to the hotel encounter . `` Everything was based on the recordings , ''
-LRB- CNN -RRB- -- The jury that convicted O.J. Simpson of robbery and other charges relied mostly on audio and video evidence -- and very little on testimony from prosecution witnesses -- jury members said Sunday . O.J. Simpson , convicted of robbery and kidnapping last week , could be sentenced to life in prison on December 5 . `` We honestly felt we could not rely on that witness testimony , '' said Michelle R. Lyons , one of seven jurors who spoke to reporters in Las Vegas , Nevada , on Sunday . `` There was not one decision we made that was based only on witness testimony . '' Jury foreman Paul Connelly said some of the prosecution 's witnesses did n't seem trustworthy . At least three former Simpson co-defendants who cut deals to testify in the case had criminal records . Asked whether the jury trusted the witnesses , Connelly answered : `` Not entirely , no . '' Watch jurors explain their verdict '' Prosecutors produced an audiotape of the confrontation in which authorities said Simpson and five men burst into a Las Vegas , Nevada , hotel on September 13 , 2007 .