If it wasn't a big corporate chain they robbed, they're a dick. Family businesses are in enough trouble right now without scumbags robbing them.
Personally speaking, if someone used to cause me problems (I had a guy organise for my house to be broken into, grow room goodies stolen etc.) I simply marked it down as one of the known dangers and moved to a different area. Life is too short to get involved in teenage fantasies about being badass. If you actually have the skills, you only use them when it's really REALLY necessary, and not for petty crime crap. That stuff just isn't worth the time, most of these young hoodlums (and I'm betting its the same in the US) are just idiots with nothing to lose... I have plenty to lose so I would never play their games. You have to be above that petty crap to make a living out of growing. Why risk the next 5 years of nice profits on trying to prove a point to people nobody cares about anyway? Meditate upon this you must padawan.