What a horrible thought: did he dump little Danielle, then go play casino games? Oh, this is just too awful. I don't know. The local Los Angeles channel 9 mentioned that Westerfield was a private member of a casino located 2 miles from the body dump. They interviewed one of the staff who said they came forward to offer information to LE about Westerfield. I do not know if he was or was not there that night ... but he certainly knew that alternative road.
I doubt that he stopped there. It sounds more like he blasted out into the desert to establish an alibi when the RV "broke down" out near Glamis. "Who? Me? Couldn't have been. See the tow truck driver's records? I was waaaay over here in the desert. Nope... Nowhere near the crime scene. Not me. Uh-uh... Nosireebob. Miles away... Says so on the driver's records."
(Yeah, yeah, yeah... I know... Innocent until proven guilty and all that; yada, yada, yada.)