There is definitely a contradiction in the timeline. She claimed he left the house at 2:00 in the morning, but in the dispatch statement they said the call was placed at 12:05 that morning. Looking at the dispatch statement, I wonder if they didn't make a mistake by not redacting the time the call was placed. They redacted a lot of information seemingly less relevant than that!
Lorenzen's body was actually found in Memphis, basically the best way I can describe it to you is that it was at a place on the border with Germantown and only a couple of miles, if that, to Collierville. I don't know exactly where Sherra's house was in Collierville, but it could potentially have been very close to where the body was left. There's a road called Winchester that runs from the south side of Collierville into Germantown and bisects Hacks Cross Road, where you would take a right to get to Callis Cut Off. Winchester is an easy drive at that stretch, not many red lights, and you could get from Collierville to Callis Cut Off (where Ren was found) VERY quickly.