The rebels sit down in their respective offices. Never in a million years did they think taking out the President would be an option. What has this world come to? They sift through all their information noticing they don't have as much to go on as they thought. We have the Patriot Act and still no info they say among themselves? Get on to wire tapping, break down firewalls, intercept emails anything to find out who is against us and who is protecting the president. They know there is a 2nd group on their side but both groups are unwillingly to show themselves, fear of the lynch, better to work behind the scenes.
The finally decide who to take out,in the dead of night they send their best assassin, a simple rewire and reroute of the natural gas lines causes a carbon monoxide scenario which kills Plantling.
Plantling was CIA