A jury is first "qualified" by the court as to certain relationships, including with the parties. Some people aren't eligible to serve - for example, those with a financial interest in the outcome.
Of those who are eligible to serve, some can be stricken "for cause," - not necessitating the use of a peremptory strike. I have little doubt they could've gotten rid of this guy for cause. There is no indication they tried. This usually happens at sidebar after that juror is questioned.
If you have anything else to say on this topic, please try to have some idea what you are talking about.
I don't think this jury was chosen in the way that you suggest, see Rheo's research on the topic.
Since you know so much, who will be prosecuting Russert?