He should not have been allowed to buy a gun because he was arrested on drug charges. It says it in the article. I posted the article for everyone to read.You act like him being the FBI direct gives him credibility... on the contrary he is just pushing his and Obama's agenda and it is despicable for him to use a tragedy to do so.
Also you don't include the reason Comey said he should not have been allowed to purchase the gun. Extremely disingenuous of you
http://news.yahoo.com/fbis-dylann-roof-gun-snafu-hurts-obamas-gun-170916362.html
The FBI screwed up, that's why he got the gun, not because of a lack of laws or regulations.
Also, being the FBI director does give him a lot of credibility. In what world can you make an argument against that?