Was Iran Behind Tashkent Rabbi's Murder?

Judith Apter Klinghoffer says, on History News Network, that there may be an Iranian connection to the recent murder of a rabbi in Tashkent, Uzbekistan:

The International Sephardic Leadership Council's official response blames IRAN:

The destruction of the Tajikistan synagogue last week was the most disgraceful act committed by a sovereign state toward its Jewish population since the end of WWII. Now, a suspicious murder of the leader of the sister Jewish community, only 4 hours away, raises concern that the Jews may be being targeted. We have heard, through official channels, that Iran may be involved with stirring up trouble in the region, and to that extent, we hope a full and fair investigation will be opened.

That is, indeed, the very least we should insist on.