IMO,
It has prob been discussed in the other 48 threads, I didn't read them.
CBR spotted Mollie, realized she looked like Iris, he got out of his car approached Mollie, punched her, maybe the mouth or nose that knocked her out, picked her up, put her in the trunk. There was only a little bit of blood, she was probably not stabbed prior to being put in the trunk. We also don't know what CBR had in that trunk at the time, blanket, towel, etc. He had some fishing items and some children's items, so a blanket, towel or the like is a likely.
He then took her to the cornfield, I think testimony from Mollie's phone/fitbit data, she went straight to that spot, he took her out of the trunk and into the cornfield where he proceeded to rape, stab and possibly beat her to death over his anger at Iris.
I'm curious as to the timeframe of Iris getting the new bf?
I think it was stated today in testimony that he found Mollie's phone and fitbit in the trunk and he dumped them on the side of the road. I think there was also testimony he took his shirt off as it was very bloody. What happened to that shirt?