There's a record of Ruppert's cellphone signal until he went up in the air and jumped or shut it off, West said. That information led to an extensive search of a quarter-square mile area, which found no sign of him.
Outlying areas where Ruppert might have landed are heavily wooded or mountain cliffs.
Ruppert carried a blue parachute in a black pack. He was dressed in a tan and green wing suit, which would make him hard to spot in the woods.
Friends of Ruppert's were with ground searchers over the weekend, but did not want to talk with reporters, West said.
"People that are out there are having a little memorial today on the mountain," said a friend in Florida, Skydive Palatka owner Art Shaffer.
"There's a lot of sad people here," he said Monday.