The defense filed and argued a motion for acquittal. The judge could have ruled in favor of the defense and entered a judgement of acquittal.
She did not.
"A motion for judgment of acquittal is a criminal defendant's request to be acquitted. Such a request is made at the close of the government's case or the close of all evidence. A motion for judgment of acquittal is made when there is no legally sufficient evidentiary basis on which a reasonable jury could return a guilty verdict. In case the motion for judgment of acquittal is granted, the government has no right of appeal."
Citation
ETA: There's a toll free number at that link that people can call before posting up something stupid.
O.K. now I actually AM embarrassed. Perry Mason re-runs let me down.
...Still, this case needs to go to the jury. It's the only way the verdict will seem legitimate to people who aren't watching all the testimony.
It'll just be a few more days, and I'm pretty sure that the jury is seeing what you're seeing.