Interesting almost 1 year old story. According to a snip in the WMCTV report, the buyer was playing a joke on him. I don't know if that is true or not but is on the tv website.
MEMPHIS, TN- (WMC-TV) - UPDATE: The seller has added a new comment to his feedback page claiming that the buyer never found any money:
"He was playing a practical joke the safe was empty there wasnt any money in it."