Devices such as Airtags being misused to track and stalk targets have been in the news, though as I understand their range is limited. Still, I hope LE reviews any available video of the SUV in the days before the disappearance, in case someone appeared on video hiding a device on it. It might have been used by the perp to keep track of the vehicle in its travel and then intercept it. Of course it was very likely removed after the intercept, but does anyone know if those things "ping" their locations like cell phones?
This case brings to mind the 2005, local-to-me
Dr. Moonda murder case. It involved what initially seemed to be a highway robbery of two travelers who had pulled over to switch drivers, but the technical forensics on (circa 2005) cell phones and towers proved vital in the prosecution. I am in no way suggesting either of the women was complicit in this case (unlike the Moonda case, where the unharmed party was found to have arranged the staged robbery) but it's a good read on how the case was solved.