[netmilsmom]

>>Of course. One does not obtain sophisticated explosives training in a vacuum.<<

I hate to say it but the internet and a brilliant (but demented) young man could easily do this alone.

To use a movie line, “Tony Stark did it in a cave, with a box of scraps.”

I believe he could find a way to do this.

[Darnright]

>I hate to say it but the internet and a brilliant (but demented) young man could easily do this alone.<

Possibly. But, given Occam’s Razor, he could very well have been groomed by someone, somewhere.

I think you have a very good point, that said.