The jury that will judge O.J. Simpson may never get to consider some of the most compelling stories about him.
A question of credibility could trip up Jill Shively, who was paid $5,000 for telling "Hard Copy" that she saw Simpson driving near the crime scene around the time his ex-wife and her friend were slashed to death.And Keith Zlomsowitch's tale of Simpson stalking ex-wife Nicole Brown Simpson and spying on her having sex may not make it to the courtroom either, if the judge decides it's too inflammatory.
Among the other evidence likely to be in dispute: the dramatic tape of Nicole Simpson's frantic 911 call last year, with Simpson stomping and swearing in the background, and virtually all the material seized at Simpson's estate after Nicole Simpson and Ronald Goldman were found slain outside her condo.
Legal observers expect a contentious hearing when Judge Lance Ito decides what evidence he will allow.
"There's going to be a huge battle," predicted Peter Arenella, a law professor at the University of California, Los Angeles.
Simpson, 47, has pleaded not guilty to two counts of first-degree murder and remains jailed without bail. Trial is set for Sept. 19.
Neither Shively nor Zlomsowitch testified at Simpson's preliminary hearing, though both testified before a grand jury.