In the staid and rather predictable world of presidential photo calls, it was a rare moment of intrigue. As US President Barack Obama held court at a high-powered round table meeting in Utah, just who was the scruffy bloke sat at the right hand side?
Why did he not have a name plate on the table, unlike the other assembled Congressmen, mayors and Senators? And, why rather than dressing in a smart suit and tie, had he decided to meet the Leader of the Free World wearing just a casual polo shirt?
As the picture gradually went viral on the internet, conspiracy theories abounded. Was he a professional "photo-bomber" who had achieved the ultimate hit of penetrating White House security? Had Kim Jong Un's hacking teams doctored the photograph? Or was it someone from the IT department who had accidentally been given an invite?
As it turned out, the last explanation was the closest to the truth.
The man in the picture, since identified as Marvin Lance Futch, 26, is an employee in the computer-assisted design department at Vivint, a solar energy company in Utah.