Why should it take any longer to build a case against Comey than against Manafort or Flynn? It might even be easier -- Comey may have perjured himself in Congress a couple months back. Plus they have him for illegal removal of government documents -- his Trump meeting "notes" -- which were subsequently leaked to the media.
Seems a perjury and government removal case against Comey would be much easier than some financial case against Manafort that would require tons of financial forensics to piece together.
Plus when Comey was fired, he was in LA, and so Trump’s administration people got every single thing in Comey’s office.
Because that is the way the judicial system works. It is a painstaking process where every "i" must be dotted and "t" crossed. I sat as a juror on a murder trial where the dying victim identified the murderer. There were tons of other evidence. It took close to 9 months before it came up for trial and the trial took two weeks.
My daughter is a paralegal. The paperwork is unbelievable to move things along in the courts. I find it hard to believe that they could indict Comey in such a short period of time given his high profile and the legal team he could assemble in his defense.