Yes, this Rigi. Not that it was huge news anyway--most people on the street wouldn't have a clue, but at least some in the US press paid attention when he grabbed from an a airline flight and sent to Tehran earlier this year. Judging from a Google search (at the time of this writing) only a smattering of outlets covered the hanging event on June 20--for all intents and purposes it was buried.
The significance? As Fox reported, the suicide attack that took place yesterday occurred in Zahedan, Iran, the city of his execution. Zahedan is located in Sistan-Balochistan, along the Pakistani (Baluchistan) border. Jund'allah is saying it was revenge for the hanging; Iran claims Rigi was an agent for the west. But they aren't alone--indeed such was the crux of several major news stories during the Bush years, along with the usual speculation from the peanut gallery on the nefarious nature of such a thing.
So with that established, presto, Iran now has a legitimate link to blame a terror attack within its own borders on.... Barack Obama. Interesting too, especially based on the history of the region.