UNDATED - A couple from Colorado says an odd photograph taken years ago has changed their lives.
    
Joseph Martinez and his wife Patty had their photo taken at Patty's parent's 50th anniversary eight years ago. They are posed in front of the anniversary wedding cake.

For the most part, its is an unremarkable picture.
    
But recently they noticed something strange in the picture over Joseph Martinez's left shoulder.
    
It appears to be a snarling dog, but the couple thinks it's a demon.
    
Martinez says the photo was taken at a bad time in is life, a time when he says drugs were "killing his soul."

They also say no dogs were present at the festivities.
    
A photo expert who examined the image - the photo was shot on film, not with a digital camera - calls the picture "very strange."

Patty Martinez is convinced of the photo's supernatural aspect. "I, right away, thought it was Satan! I really thought, I said, 'man, you're really walking with Satan!"

Joseph  Martinez says he keeps the picture with him at all times to remind him of the demons in his life and he and his wife says they credit the photograph with helping his recovery.