A father has issued a heartbreaking appeal to Facebook asking for his dead son's, one-minute Look Back retrospective video - and received an "overwhelming" response.
In a message he filmed himself and posted to YouTube, John Berlin from St Louis, Missouri said "he just didn't know what to do anymore" after repeated efforts to contact the social media site.
Facebook has marked its 10th birthday by setting up an application which produces personalised films for each user. The 62-second "look back" video notes the year a user joined and shows a selections of most-liked posts and photos, set to instrumental music.
Yet Mr Berlin said his 21-year-old son Jesse died suddenly of natural causes on 28 January 2012, and with Facebook's policy of removing a person's account once their death has been verified, he can no longer access his son's account.
In the video, an emotional Mr Berlin says: "I'm calling out to Mark Zuckerberg and Facebook. You've been putting out these new movies - these one-minute movies that everyone has been sharing, and I think they're great.