BEST QUALITY AVAILABLE Undated handout photo issued via a YouCaring page set up to help support the family of Thomas Jackson, who has died after being critically injured as he tried to save a fellow backpacker as she was stabbed in a knife attack in Australia. PRESS ASSOCIATION Photo. Issue date: Tuesday August 30, 2016. Thomas, 30, went to the aid of Mia Ayliffe-Chung, 21, as she was repeatedly knifed at Home Hill last week. See PA story POLICE Queensland. Photo credit should read: YouCaring/PA Wire NOTE TO EDITORS: This handout photo may only be used in for editorial reporting purposes for the contemporaneous illustration of events, things or the people in the image or facts mentioned in the caption. Reuse of the picture may require further permission from the copyright holder.