Nonsense. He bothers to put the body in a shallow grave then goes on to unsuccessfully attack two more women in the same place to draw attention to it. Right?
A serial rapist/murderer who returns to the scene of the crime, loses in struggles with two women after he supposedly murdered Levy, and does so knowing her body is lying nearby in the woods?
To me, the whole pattern fits exactly how I think a third-rate blow-dried freak Congressman like Condit would carry out his killing. Somewhat bumbling and inept, just as he is in real life.
It's pretty obvious that one of Condit's minions knew that Chandra was coming to the area around the Klingle Mansion. She looked at it on the internet because she was (a) excited/daydreamy with anticipation of rendezvousing with Condit; and/or (b) to double-check directions. Condit's guy met her and killed her. He did a good enough job of burying the body to fend off the utterly inept DCPD, but not a good enough job to fend off a year of weather, wind, rain, and the wear and tear of Ma Nature. That year passed and there she is.
This is far and away the most likely explanation. An effort to bury the body doesn't come close to the "suspect's" MO.