Rarely-seen video has surfaced of a happy Travis Alexander doing the “Chicken Dance” with other revellers at a party just weeks before he was found brutally murdered in June 2008. (Alexander is wearing an orange shirt, blue shorts and a baseball cap in the video.)

About 27 seconds into the video, a blonde woman -- who looks like Jodi Arias -- quickly runs in front of the camera; at one minute and 28 seconds into the video, she appears again when she tapes the scene with her own camera.