My thinking is it was Victor who moved the body. He has probably known about it from the begining. I think the camera that Victoria thinks JT installed in the garage, was likely installed by Victor, as was the one in her house. (when he came to find out JT was abusing her). In any case, Victor has been away for a month. I'm thinking his return will reveal what happened to JT's body.
On a side note, I especially enjoyed seeing Victoria handle Tessa today! Way TO GO VICKIE! Girl's FINALLY got a BACKBONE!