The newsies added that the AlQaida affiliated magazine did not have instructions on how to use the toy race car controls.
Another thought on that matter ~ the FBI put together a composite video of the two perps marching down the street. They did so in a peculiar manner that suggested the one to the rear was matching the foot steps of the one in the lead. I suggested it was the pucker factor at work since these guys were carrying a bomb that could be set off by some kid playing with a similar device in the area. LIke to amplify on that ~ if there's a third party with the controller, they definitely wanted to make sure that person fiddling around with the device didn't accidentally trigger it with them IN SIGHT ~ so they did a modification of broken field running ~ moving from side to side, closer, further away, traveling just a bit faster than the people on the sidewalk so they could keep stepping in front of them ~ and all to stay out of the line of sight of the trigger mechanism.
Then they planted their bombs.
Add further that THEY may not have known who had the trigger! That finally brings into play the Saudis in the vicinity of the explosions. One more time they become subjects of interest. And so does Michelle Obama.
I wonder if the Saudi national had the remote trigger device?
I wonder what suspicious activity he was doing that got him tackled? I further wonder why he was that close to the explosion that he got injured.
Maybe this explains a lot.