Even though he has done his own research and has concluded that the official account of events is either lacking or inaccurate, he is still a conspiracist because he does not believe what the main stream media proclaims to be the truth.
Someone who tries to link the smallest things together in a conspiracy theory, and most likely pins pictures of these things on a corkboard and runs string between them to fuel the theory
Derek: Hey have you seen John recently?
Connor: Nope, he's been too caught up in his idea that bananas are responsible for lung cancer
Derek: Man he really is a Cork Board Conspiracist isn't he?
To act of conspiracitizing is to combine a hypothetical plot against someone or something with the act of over intensifying an absolute worst case scenario (aka catastrophizing) .
I kept running all the "what ifs" in my head over and over and over again until I finally had enough conspiracitizing for the night.