[Stupendous]

Kim Jong Il's wife convinced him not to do it:

"Kim Jong-il soon summoned him. Yes, Shogun-sama admitted, he'd sent an assassin to Okinawa, but he urged Fujimoto to forget about it. He was still alive, wasn't he? It was Kim's wife, Ko Young-hee, who'd reminded him of how funny and lovable his Japanese friend had been. Thus the killer was recalled."

[TobbenTM]

No, that was the man who visited him later.

"..and the last time a North Korean made the journey to visit him in Japan, a decade ago, he was there to kill him."