New video footage of missing teenager Jay Slater has emerged with the owner of the video describing him as “looking worse for wear”. The 19-year-old, who has been missing for a week now, was spotted staggering around at a club in Tenerife just hours before his disappearance. A man has reported seeing Slater at the popular Papagayo club in Playa de las Américas in some of the final captured footage of the teenager. In the video, Slater, who is wearing a blue top around his neck, appeared to fall to the floor. “It was a good atmosphere, it was hard dance music and everybody was having a good tim…