Could this be relevant to DC goings ons?

>archive.fo/9785K

>Investigators found the younger Khafra’s charred body in the basement of Beckwitt’s Bethesda home. A hole in the concrete basement floor led to a shaft that dropped down 20 feet (6 meters) into tunnels that branched out roughly 200 feet (60 meters) in length.

>A police report says Beckwitt told investigators how he tried to preserve his project’s secrecy when he brought Khafra there. Beckwitt said he would rent a car, pick Khafra up and drive him to Manassas, Virginia, where he had the younger man don “blackout glasses” before driving him around for about an hour. Khafra spent days at a time working, eating and sleeping in the tunnels. He had his cellphone with him, but Beckwitt used internet “spoofing” to make it appear he was in Virginia, according to Montgomery County prosecutor Douglas Wink.

Perhaps these tunnels aren't just his, per say.