Teeuwynn received an email this morning that she says comes from a legitimate source and that includes clues about Evan. Here it is:
HST—FaLiLV/tRD:aN/HA:aSaTS; TW—tRS/tEKAA/tBotV; FSF—TItN/tGG/tCCoBB; JC—LJ/HoD/aOoP; JM—JGS/MWS/tBotH; GD—BB:aBaJ/tCoM/tMotS; see GR
If you know what it means, put information in the comments section or on twitter at #vanish.