Any of that can be bought off the internet. For that matter you can buy any tactical equipment you want from a police supply store. It is not that expensive either. Just walk in and pick it up and pay, no questions asked. Kevlar vests also. You have to wait a while on those since they have to measure you for them and then make them to fit you.
I personally know people who would be able to get in and out of a home quickly. My nephew is a career Army Ranger. He has been to Iraq and Afghanistan six times. He was shot the last time he was there. He could do it. So could others with his training. Not that he would, but just saying. You would not know what he is by looking at him either. He looks like the boy next door.
Don't you watch the news? There are teenagers who could get into your house and take everything that is not nailed down while you are sleeping in your bed. That happens very frequently in cities. It is called home invasion. The first you know about it is when you wake up and try to turn on a TV that is no longer there.
Once again I don't see any special equipment that you can't buy from your local police supply store or any special skills that the average neighborhood burglar doesn't have. But I am done with this conversation. We will agree to disagree.
I know we've been over this dozens of times and we're all entitled to our opinions. Mine is based on the the totality of all the information known thus far and the probability of close family members committing such a large scale, professional massacre with no prior experience. It's not just based on where perps can buy things. It's also based on expert opinions, crime trends and history of unsolved drug related murders in this area. Lots of evidence and data have been analyzed on this type of crime in the US and it's always worth looking at the conclusions drawn by experts on the type of killers who do it.
Everyone is obviously frustrated at the lack of progress in this case and the unusual (and some would say questionable) manner in which LE has handled it. Anything is possible, I'm just basing my opinion on probabilities. We're just observers here, hoping this family finds justice, doing what we can to advocate on their behalf.