a) If Parajon won the trial and was awarded $450,000 why would she move for a new

Question:

a) If Parajon won the trial and was awarded $450,000 why would she move for a new trial?
b) Does that mean because one juror did not answer a question truthfully, both parties have to pay to try the case again?
c) Is there anything the parties can do to the juror? Can they sue her for lying during voir dire?