[gigi]

I agree.
Faulkner said there is no evidence to the exclusion of the body before the 16th.
In other words her body was protected from insects.

I can't believe her body laid there bug free until the 16th.

[John Jamieson]

It means that DW could not have done it alone, and any theory that has that as a basis is wrong.

[Southflanknorthpawsis]

I can't believe her body laid there bug free until the 16th.

Exactly !!! Maybe a reasonable person could buy a couple of days discrepancy, but we are looking at two weeks after 2/1-2/2.