I want to, desperately, and have thought about this MANY times over the years, but I don't think I can prove anything definitively. At the end of the day, it would devolved into he said, he said and I doubt they'd believe me over him.

There are a few instances/papers that are suspect. One of which is in Science, but that person conveniently was basically handed the opportunity to delete all the behavior videos from the lab's share drive when we were nearly at capacity just about a year ago and him and myself were told we were hogging the most space and asked to delete whatever we could. He deleted essentially everything, having graduated just a few months prior. I tried to secretly save one experiment's worth of their videos hidden in my folder on the drive but it would take me months to re-score it by hand. The other paper we have better "evidence" in that that was behavior data autoscored using computer software and 2 other lab members (a junior faculty member/lab manager who has since left that job and another grad student) attempted to reanalyze the data from original video files rescored by the computer using the same parameters the person would have originally used and that data looked completely different.... I actually deleted that edit of my post though because this goes so deep and I can't possibly fight it, it's not even worth it..... I'm sick over it but I'm ultimately powerless.