Aurora Shooter bought assault weapons, bomb making stuff, 6000+ bullets and bullet proof clothes legally

During testimony today a police officer said that the Aurora Theater Shooter bought all of his killing material legally.  There was nothing which could have been done legally to stop him with the current laws.  I am looking forward to the Biden recommendations and hope President Obama makes changes with Executive Order instead of going through the Congress which is bought and paid for by the NRA.  The 2nd Amendment also says A WELL REGULATED MILITIA which is part of the 2nd Amendment.

http://abcnews.go.com/blogs/headlines/2013/01/james-holmes-legally-bought-arsenal-of-guns-chemicals/