Why I “Need” an AR-15

>> I do actually believe the fact that this violent nutjob who had been interviewed by the FBI three times was able to get a gun is so obviously messed up that it’s foolish to suggest otherwise.

Interviewed because he went to the same church (-equivalent) as some criminal. Is it a crime to be investigated by the FBI now, sufficient to treat you as a felon? Do you think that precedent will only impact "unhinged Muslim guys"?