The Laundries believed the van belonged to BL. The below quote is from Roberta Laundries deposition.
Q. If Gabby had just walked off on her own, would you have told your son to drive home in her van with all of her stuff in it?
A. No. I didn't tell him to drive home. He just said he was on his way home, and I thought it was just a nice gesture that he put it in her name.
Q. Well, you told me the title -- that you saw the title was in Gabby's name, so why would you think it was Brian's van?
A. Because I believed he paid for it. He worked on it.
I knew that she couldn't afford to pay for her or didn't want to pay for her --
she was leasing a car and she didn't want -- and Brian was paying for the lease, and she finally drove home and left the car at her parents' house, and so I think he just wanted to put the van in her name to be nice, but I don't remember her ever driving it even.