RR, glad to know you and you're family are OK, that was one dangerous situation involving your son. The way you put it, it sounds a bit too coincidental for an attempted robbery at a residence, I would think your son either knows or had a run in of sorts with these individuals somewhere. The fact that they showed up and targeted him and not you shows they had some intentions beyond robbery with your son. A lethal weapon was used, your son is DEFINITELY lucky to be alive, if he is involved in something, there may not be a good result next time, these types of people are ruthless.