Looks like you may have been right about Omar Hamaha. 

He's been sort of removed from the Rewards for Justice website.
http://www.rewardsforjustice.net

Though his wanted poster remains in a separate location.

http://www.rewardsforjustice.net/english/oumar_hamaha.html

Hopefully, Rewards for Justice will remove Ibrahim al-Afghani from the list at some point. His own sister confirmed his death.

96.59.223.143