The adults weren't completely innocent. They were served a legal search warrant and instead of the doing the sane thing, they hold up inside their compound. After surrounded by police a sane person would surrender. They were delusional and caused the deaths of their own children by not letting the cops serve a warrant.
If the cops come to my house to serve a search warrant and I hold up inside with guns and don't let them in their is only one end result. Eventually they are coming in and if I hold out through the tear gas and whatever else they use to try to flush me out, then yeah, eventually I'm gettin' shot and I'm gonna die.
But you can't have it legally on your home built MAME machine (at least with EVERY game you could think of). The various MAME cabinets that you see in arcades get most of the popular ones though, and you can buy those machines.
Buying old broken machines allows you to do a full restoration, exempting hardware, that flawlessly plays classic games. When you buy the machine with the ROMs, or a machine from an owner you bequeaths you all rights including his right to all information on the ROMs all lost parts, et cetera, then get the right to run the game. You can buy a crapped out box and gain the legal rights to a full restoration in a commercial or private environment. Someone could probably make a hand-some amount of money selling replica machines with the rights they gain. One could even secure the old ROMs inside a new case as proof of its legality. Emulation has made it so some of the very fun cult classics could make their way back into bars, or even in gamer cafe's. One game on a machine, period. Mastering a really hard game makes one want to play more. Anyone who has ever played Defender:Stargate understands the urge to pump in more quarters to get a shot at them Yllabians.
New York... when civilization falls apart, remember, we were way ahead of you. - David Letterman