Why did Obama still provide all that aid to Pakistan?

He claimed in his speech directly after allegedly killing Osama that he had intelligence over the past two years that they were harbouring Osama, yet he still continued to provide so much aid - what about the so-called "War on Terror"? Surely if he knew that Pakistan was harbouring the worlds no.1 terrorist (once again he made this claim himself in his speech), the most wanted man in the world, why give them so much? Did he forget that the U.S does not negotiate with terrorists, whatsoever? Some might also use a lame excuse that he did not want them to know that he knew, but this still doen't justify why did he give them so much of his own peoples hard-earned taxpayer money and Osama was allegedly hiding there all along, and he claims that he knew it for the past two years!!