That doesn’t look “home-boy” style, the angle of the wrist is wrong and the gun is too low. It looks like he has the gun slightly canted, which is a one handed firing technique I’ve seen people teaching. I just watched a segment on some defensive guns TV show, on the Sportsman Channel last week where they showed it. I am not advocating the use of this technique, just saying that I have seen people that teach it.
go to the article and scroll down - there is a pic of him clearly holding it horizontally