[Dead Corpse]

No.

From the photos I saw, it looked like common R/C model controllers were used.

[muawiyah]

high pucker factor involved in moving a bomb around under those conditions ~ some kid fires up his little plastic race car and KERBOOM.

That could well explain why the perps did that march step ~ not that they were marching in unison, but they had the same highly agitated sphincter region!

[silverleaf]

Did you catch the photo sequence where the white “chick” in sunglasses and dark coat casually dropped her big purse on top of the trash bag/bomb and then walked away and left it

detonator?

Bomber $3

[UCANSEE2]

From the photos I saw, it looked like common R/C model controllers were used.

Or... the RC controllers were in the backpack to cover other things in case of a 'casual search' by security. Or they were there to keep the public from knowing just how simple this whole thing was.