That message from anonymous about who is going to be blamed is interesting. Should be tracking on that information taking place. Certainly that sender of that info does not think someone cannot find him / her.
The call to regulate sales of black powder and smokeless powder is inevitable, because that's what was used to charge the device. Same sort of reaction to OKC, change manufacture of fertilizer, and limit who it could be sold to and keep records of all sales.
20-30 year old is a very safe bet.
Possesses NRA literature? Maybe.
Anyway, my point is that what is posted as inside info could just as easy be a "Carnac Says" type of trick.