The sheriff told the New York Times that it was the son in law who made that drop off. I think he was vague both prior, and then after saying that, using "family" instead.
Ms. Guthrie was taken from her home near Tucson, Ariz., against her will sometime between 9:45 p.m. on Saturday and Sunday morning, the authorities said. She had dinner with her daughter Annie and her son-in-law, who live nearby, Sheriff Nanos said.
Ms. Guthrie’s son-in law, TC, dropped her off and ensured she made it inside safely before leaving, the sheriff added.
The authorities made urgent pleas for help from the public as they tried to locate the “Today” anchor’s 84-year-old mother, who was reported missing in Arizona on Sunday.
www.nytimes.com