[Sutter County Undersheriff Jeff] Pierce said Wednesday toxicology and lab results from Yeoman's body will take four to six weeks, and those could play a part in determining the cause and manner of her death. Investigators are also waiting for other evidence, such as Yeoman's Toyota Tacoma that was found stuck in the mud not far from where her body was found.
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Pierce said he wasn't sure how long Yeoman's body appeared to have been in the water, and there could be a number of reasons why it wasn't discovered until now. Factors could include water conditions, searchers' sonar not picking up on anything, or the body being snagged by something and held below searchers' view.
Pierce said searchers remained above water on boats with dogs because water conditions were too dangerous for divers.
For now, Pierce said investigators have a lot of work ahead of them.