I just don't think you can tell someone is illegally carrying because of how they look or where they are and I really don't believe criminals Openly Carry their illegally possessed handgun that is probably stolen in a lot of cases.
I guess you missed the post where I stated that they were known gang members, most with prior felonies... I worked very closely with many of their family members and I ran a program to help youths to avoid or get out of gangs.