It's been nearly four months, and still no answers.
Thirty-nine-year-old Matthew Greene hasn't been heard from since mid-July. Friends tell us the Nazareth Area High School math teacher has officially been declared missing here in Pa., but they haven't gotten any closer to figuring out what happened to him.
"At this point, unfortunately, nothing solid has come out of that," explained friend Tony Rogerson. "Hasn't really helped with a clue of where he might have gone on that day."
For friends like Rogerson, and especially Matt's family, that only leaves more questions. Matt was last seen in the Mammoth Lakes area of California. Snow is already falling out there, making it too treacherous to continue searching.
"We knew this time would come, it was inevitable," added Rogerson.
Family members say they're putting the search on hold until the spring. But they want to keep Matt's story alive until he's found.
"Just not knowing really makes it difficult to move forward quickly."
Students at Nazareth High have held 'Green Outs' at football games to raise money for the search, and Matt's parents have started a scholarship in his name. But the loss isn't getting any easier.
"We're planning for Christmas, Matt was always with us, and planning, looking forward to some weekend trips with the boys, and Matt will be missing, and that's a constant reminder," Rogerson said.
He says close friends are planning a bonfire and memorial for Matt this weekend, hoping maybe it can help them move on.
"Talk about Matt, and look at pictures, and just have a chance to kind of bond and help ourselves work through this," shared Rogerson.