Convicted killer Luke Miller has spent the last 10 years in a Scottish prison for the 2003 murder of his 14-year-old girlfriend Jodi Jones, a crime he insists he didn’t commit. So his supporters have been lobbying that a polygraph test indicating his innocence be made public to draw attention to his case, in hopes that the courts might reconsider his sentence—or even set him free. It’s now on YouTube, marking perhaps the first time a prison-issued polygraph test has been posted online. Administered last April by British Polygraph Association secretary Terry Mullins, the test is actually two and a half hours long. The video you can watch is 17 minutes of tense questioning. Focus is very apparent on Mitchell’s face and body, both rigid and unmoving. And you can’t blame him, because his life is quite literally on the line.