See Chris ***** interview w/ Melich, page 5, beginning line 12. Chris is not sure Casey came over specifically on the 17th, but he knows and his mother confirmed it was either the 17th, 18th, or 19th. She was there for one and a half to two hours, arriving some time soon after 5:00 PM, because Chris remembered getting off work around "5-ish". Casey showed up in Tony's Jeep, but Tony was not with her.
I think we can rule out the 18th, as the pings during the timeframe in question come from the area near Tony's.
I think we can rule out the 17th as well. Casey is seen with her white Sunfire by BB backed into her parent's garage in the early afternoon, and pings from 2:29 to 4:05 support this. It does not appear she drives back to Tony's, however, because the 4:36 ping is from a tower very close to JG's Arden Villas apartment. While it may be physically possible for her to drive to AL's, switch vehicles, and go to the Arden Villa region in the time available, I don't see any reasons to do that and it would be very tight.
The 19th seems most likely, as the 5:45 ping is from a tower about 3 miles from Chris's.
I have not seen a statement from AL indicating he loaned Casey his Jeep any afternoon from June 17 to 19, or why. Anyone have that hole plugged?