As to the range or kill wound radius....if you can see Mr Grenade , Mr Grenade can see you.......100 feet ain't squat. If it was dropped into the crowd they'd have absorbed the frag and blast but the golden BB effect is in play out beyond 100 feet easily.
Per my experience only.....
See my #80...
I read the full article from the link......and found NO definitive confirmed description of the grenade as a frag grenade...
It could have been ANYTHING.....and perhaps lethal at 100 feet..
Of course with Mr. Grenade --- any freaking thing can happen after his fuze ignites ---- panic, chaos, riot, secondary explosions, etc, etc......could have injured the President..
Grenades can be used to simply set things in motion, and allow the real attack to commence while everyone's attention is captured and focused on the GRENADE and NOT the President..
It would be foolish to regard this "dud attack" as harmless.
It could even have been simply a test of security reactions..
Semper Fi