That would be the narrative in the US media reports about the case. In any case, the timeline seems to imply that the US was planning to assassinate Dakanzali well before Spain sought his extradition from Germany:

January 2010: Adam Ciralsky on Blackwater | vanityfair.com

When Prado left the C.I.A., in 2004, he effectively took the program with him, after a short hiatus. By that point, according to sources familiar with the plan, Prince was already an agency asset, and the pair had begun working to privatize matters by changing the team's composition from blue-badgers to a combination of "green-badgers" (C.I.A. contractors) and third-country nationals (unaware of the C.I.A. connection). Blackwater officials insist that company resources and manpower were never directly utilized--these were supposedly off-the-books initiatives done on Prince's own dime, for which he was later reimbursed--and that despite their close ties to the C.I.A. neither Cofer Black nor Rob Richer took part. As Prince puts it, "We were building a unilateral, unattributable capability. If it went bad, we weren't expecting the chief of station, the ambassador, or anyone to bail us out." He insists that, had the team deployed, the agency would have had full operational control. Instead, due to what he calls "institutional osteoporosis," the second iteration of the assassination program lost steam.

Sometime after 2006, the C.I.A. would take another shot at the program, according to an insider who was familiar with the plan. "Everyone found some reason not to participate," says the insider. "There was a sick-out. People would say to management, `I have a family, I have other obligations.' This is the fucking C.I.A. They were supposed to lead the charge after al-Qaeda and they couldn't find the people to do it." Others with knowledge of the program are far more charitable and question why any right-thinking officer would sign up for an assassination program at a time when their colleagues--who had thought they had legal cover to engage in another sensitive effort, the "enhanced interrogations" program at secret C.I.A. sites in foreign countries--were finding themselves in legal limbo.

The Dakanzali operation seems to have been conducted before 2004.

En un viejo país ineficiente, algo así como España entre dos guerras civiles, poseer una casa y poca hacienda y memoria ninguna. -- Gil de Biedma

I must say the extradition discussion struck (and still strikes) me as more of a tangential discussion than an argument.

The fact is that what we're experiencing right now is a top-down disaster. -Paul Krugman