Since were on the topic of the body and its disposal, heres another tidbit from Redrum, page 394:
On October 2, 1990, Fitz took two student archaeologistsKathy Gruspier and Grant Mullento the murder site, where he pointed out the location of the bones found by the Jessops. They were to begin a careful excavation to determine whether more bodies were buried at the site. During his familiarization tour, Fitz gestured to a shallow pit not far from where the remains had been found. About twenty to twenty-five centimetres at its deepest point, Gruspier and Mullen could tell from the rounded corners that the pit had been dug with a shovel. They located a small pile of earth a few centimetres away. We referred to it at first as a garbage pit, Gruspier recounted later. I believe Sergeant Fitzpatrick referred to it as such on the first day we went out. But we didnt find any garbage in it, so we stopped referring to it as a pit.
Had Fitz mentioned whether the pit had been in existence when the body was discovered? Yes, we specifically asked that, said Gruspier. He said yes, it had been.
So this shallow depression or "pit" is 25 cm deep in 1990 and had been there since 1984/1985...
Is this something the Culls' had done, or something that the killer had done (an attempt to bury the body, first?)