what Assertn said. Also, akatsuki only has 2 demons so far. Gaara is the third. wouldn't make sense if Oro had a demon, or he woulda just used it's power to crush Konoha. The puppet maker doesn't have a demon, since he said he still needed one.

On top of what Assertn said, why doesn't Kyuubi suit Itachi? Specify a bit.