This story has been widely reported.
Man arrested after taking 6 guns, body armor into Atlanta Publix
Atlanta man arrested with 6 guns, body armor at Publix grocery store - ABC News
Man arrested at Atlanta grocery with six guns, body armor, police say
Heavily Armed Man Arrested in Atlanta Grocery Store - The New York Times
Man walked into Atlanta grocery store with five guns, body armor, police say | Fox News
The most important detail you omitted is that the police are having a problem finding any gun law that was broken as Georgia has no regulation on open carry of weapons or wearing of body armor. That is the biggest part of the story IMO.
He has been charged with "criminal attempt to commit a felony and six counts of possession of a firearm or knife during commission of or attempt to commit certain felonies." But there has been no publication that I have found of what felony they are alleging he was attempting to commit.
Here is what he had on him at the time of his arrest at Publix which I know is posted above, but not specifically labelled as what was on the man.