This is a very good question. As far as I know, Jake is the one who put himself at DR's house that night, to pick up the little girl. He did this in an interview and followed up with he reckoned they missed it by hours. IIRC, Angela later changed Jake's story about picking up the little girl that night. I saw AW's "correction" as a big red flag and that Jake had gotten sloppy and he forgot about the agreed-upon W story of when the little girl went to stay with the W's.
I've not seen anything that there is independent proof he picked up the little girl that night. JMO, I think he did go there to get the little girl and that may have resulted in a very upset HR calling DR at work. This is just my speculation. I'm not sure if we will ever learn these kinds of details, but to me, it fits. JMO