First, the article is not “from” a self-proclaimed former Black Panther, now war hero; it is about him. Johnson did not write the article.
Second, nowhere in the full Deseret News article is John Johnson referred to as a “war hero,” either by the author of the article, or by Johnson himself. All it tells us about his military experience is that he enlisted in 1973, ended up in jail on drug charges, and then was reinstated after his release. One of the pictures accompanying the article also claims to be a picture of Johnson serving in Iraq.
Of course, the presence of a Combat Action Badge, which is awarded to soldiers “personally present and actively engaging or being engaged by the enemy, and performing satisfactorily in accordance with the prescribed rules of engagement,” might lead some people to use the term “war hero,” and that’s completely fine, but that is not how he is described in the article.
According to the army, over 47,000 Combat Action Badges were awarded between December 2001 and the end of 2013 for Operation Enduring Freedom (Afghanistan), and over 68,000 were awarded from March 2003 through August 2010 in Operation Iraqi Freedom. If the picture in the article is a real picture of Johnson serving in Iraq, i would not be especially surprised to learn that he had qualified for the CAB.
I have no idea if the guy’s Combat Action Badge is being worn correctly; someone with military experience will have to answer that question. I tried to look it up, but apparently it’s more complicated than just working out a specific location for each decoration. Where different decorations are positioned depends, to a considerable extent, upon how many you have, because there is an order or precedence for medals and other decorations.
According to the army’s own regulations, Department of the Army Pamphlet 670-1 Guide to the Wear and Appearance of Army Uniforms and Insignia (PDF), the Combat Action Ribbon is last (#31) in the order of precedence in categories of medals (p. 226), but the Combat Action Badge is in Group 1 in the order of precedence of combat and special skill badges and tabs (p. 245).
And even if the badge is in the wrong place, it’s also possible that it’s in the wrong place due to a simple mistake of placement. Wouldn’t be the first time that a person, even a soldier, made a simple mistake.
Basically, i don’t think that we have anywhere near enough information, based on one single article, to answer your question. And, to be honest, i don’t know why you care so much. I’m just glad that “stolen valor” is now just a stupid phrase of righteous indignation, and no longer a law infringing on constitutional rights.