Swamp hunt intensifies as Petito's body is identified

What they're saying: "Anyone with information concerning Mr. Laundrie's role in this matter or his current whereabouts should contact the FBI," said Michael Schneider, special agent in charge of the FBI Denver division.

Flashback: Police said Laundrie's parents last saw him a week ago — Tuesday, Sept. 14. He told them he was going on a hike and drove a Ford Mustang to Myakkahatchee Creek Environmental Park, on the south side of Myakka River State Park.

• That same day, a family member picked up the car and drove it back to their home, police said.

Police have chased tips that Laundrie was seen in Mobile, Ala., and Baker, Fla., but their focus on the Carlton Reserve near North Port suggests evidence that Laundrie is still in that patch of wilderness.

Ben's thought bubble: A motivated hiker in moderate shape — with access to fresh water — could do 10 miles a day through that swamp. The reserve is adjacent to a state park, but the whole parcel is only 15 miles at its widest.

• A hiker trying to, say, make it to the Florida Trail at Kissimmee Prairie could’ve been out of the reserve in a few hours, out of Myakka River State Park in a day, and connected with the Florida Trail by yesterday without crossing a busy road.