The crews stood in a circle at a property on East Orem Drive in southeast Houston. They bowed their heads as Tim Miller of Texas Equusearch appeared to lead them with a few words.
The crime scene tape is back up after police taped off the only open area in the gate, and Cain's accused kidnapper, William Reece, is nowhere to be found today.
Friends of Jessica Cain plan vigil
Yellow tags mark the spots where workers have been feverously searching for days now.
Reece was seen on the property at least twice as he helped investigators.
Video: William Reece assists searchers in southeast Houston
A large backhoe can be seen slowly lifting dirt, scooping and then sifting through the dirt. It happens over and over again as investigators hope to inch closer to a resolution to a 17-year mystery.