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The admission of several audio and videotapes showing Peterson lying , the compelling scientific testimonies from several expert witnesses and highly damaging account of the lead investigators contributed to the shift

Despite the prosecution 's strong conclusion , a conviction is not at all certain . The evidence is entirely circumstantial , with no forensic evidence of a murder committed in the residence and nobody saw Peterson dispose of the body of the victim . Moreover , medical examiners were unable to determine the cause of Laci Peterson 's death . To shift the momentum back to the

Peterson 's side when they begin calling witnesses on the next trial , the defense will certainly use this lack of direct evidence . On October 5 , 2004 over nineteen weeks of trial before resting the case , the prosecution presented 175 witnesses and piles of evidence exhibits

Without specifying the reason , the judge postponed the start of the defense for a week . The prosecution apparently was not told that Gebler a senior engineer for the Illinois-based Construction Technology Laboratories will likely rebut a prosecution witness that Peterson made at least one cement weight to sink the body of Laci to the bottom of San Francisco Bay . The prosecution was not prepared to cross-examine him Under California Law , both parties are required to inform the opposition which witness they intend to call 30 days before the trial begins . This would give ample time for the prosecutor to conduct its own review of whatever record or document the witness may present in court

Scott Peterson 's defense has painted a picture that transients may have killed Laci Peterson . East Bay Regional Park Police Officer , Timothy Philipps admitted that squatters frequented the area where the 27-year old victim 's body was found . During the prosecution 's 19-week case , the defense repeatedly pointed to homeless...