changed his story only after getting immunity. is there nothing prosecutors can do? >> well, i mean as far as what he testified today, not very much that they can do about his testimony. i mean he could potentially be charge the later with perjury if they believe that he lied. i mean now the government is treating him as a hostile witness, so they have more leeway in cross-examination of him. but he has immunity. >> prosecutors say that they're not dropping the premeditated murder charges, but is their case in jeopardy now? >> i think their case has some problems now. i mean i think that when you have someone who comes forward and says, i'm the one that actually killed this isis prisoner, there's doubt, and the military panel is, you know, going to take that into consideration. so i think the government has some problems with its case. the government still has other wngss, though, that testified that they saw chief gallagher,