Any listing at below market price with one pic and no details (size, specs, equipment, why being sold, how much ridden, etc) is suspect. Googling for other versions of that photo anywhere online, however, turn up nothing so it appears the photo is original.
If it were close to me, I'd set up an appointment to go look at it, and find out what the back story is. There are a myriad of potential legitimate explanations why this bike is being offered at such a low price. There's no way, however, I'd conduct this transaction over the internet, in part or in full. I'd want to see the actual bike, and talk to the seller face to face.
"They're made of latex, not nitroglycerin"