Investigation into the potential mishandling of classified materials appearing to be nearing its final stages. cnn senior crime and justice reporter katelyn polantz outside the court in miami. why don't you bring us up to speed. >> reporter: well, john, taylor and his attorney stanley woodward did arrive a half an hour ago to the federal courthouse in downtown miami. they wouldn't answer any questions about why they were here or why they believed they were here in miami rather than in washington, d.c. where we saw for months grand jury activity, but our reporting team has been able to confirm ...