Minnesota DNR conservation officers are investigating a possible suspect in a tree top caper, that's devestated a state-owned black spruce plantation. Officials say the tops of ten to twenty thousand spruce trees were lopped-off recently, in a remote area north of Nashwauk on the Iron Range. It's thought the tree tops are on their way to other cities where they will be sold as small Christmas trees. Brian Buria is with the DNR's Bigfork office. He says a commercial first tippped him off to the theft.