Who will give out Shekau and Boko Haram with all the Bounty out there?

There's a $7 million bounty on his Shekau's head
Shekau has been on the radar of U.S. officials since he came to power in 2009. Last June, the United States put a bounty on him, offering a reward of up to $7 million for information leading to his location.

... But that's yet to yield results
Why? according CNN's Chief International Correspondent Christiane Amanpour: "(African warlord)

Joseph Kony's had a bounty for years and years. Even with the 'Stop Kony' video that went viral, nothing has happened to get Joseph Kony
Osama bin Laden was not given up because of the $25 million bounty. And who knows whether this will be the case."

Will Shekau be Giving Up by Someone?