Case Unrested

Last updated: 2026-02-12 01:30 UTC

Update (2026-02-12 01:30 UTC): CBS News reports the FBI said it is conducting an “extensive search” along nearby roadways near where Nancy Guthrie went missing, focusing on roads, washes and pull-offs between her home and major routes out of Tucson, and that investigators have canvassed nearby gas stations and pulled surrounding surveillance video. Earlier, authorities said a subject was detained during a traffic stop south of Tucson and questioned, and a court-authorized search was conducted at a location in Rio Rico, Arizona with FBI assistance.

Quick take

This remains a fast-moving investigation with limited confirmed public detail. The most meaningful verified developments are the detention and questioning of a subject, a court-authorized property search tied to the case, and the FBI’s stated focus on an “extensive” roadway search in the area.

What’s confirmed

• Pima County Sheriff’s Department said deputies detained a subject during a traffic stop south of Tucson and that the person was being questioned in connection with the case (as reported in CBS News live updates).
• An FBI spokesperson said the FBI Evidence Response Team was assisting the sheriff’s department with a court-authorized search of a location in Rio Rico, Arizona related to the investigation (per CBS News live updates).
• CBS News reports the FBI said it is conducting an “extensive search” along nearby roadways, focusing on roads/washes/pull-offs between Guthrie’s home and major routes out of Tucson, and that investigators canvassed nearby gas stations and pulled surveillance video from surrounding neighborhoods.
• The Pima County Sheriff’s Department said it has received more than 4,000 calls to its tip line in the last 24 hours, and nearly 18,000 calls total since Feb. 1, and that investigators are continuing to follow up on leads (per CBS News live updates).
• Authorities have not publicly identified a suspect.
• A man who identified himself as Carlos Palazuelos said he was the person detained and that he was released; NBC News reports authorities confirmed a man was questioned and released.

What to watch

• Whether authorities announce any arrests, name any suspects/persons of interest, or share results from the Rio Rico search.
• Any additional releases of stills/video, vehicle descriptions, or a tighter verified timeline.

Sources

• CBS News live updates (compiles official statements)
• NBC News: man detained says he was questioned and released
• FBI Phoenix statement on X (roadway search)

What we know / what we don’t

• We know: Authorities are actively investigating; a subject was detained and questioned; a court-authorized search was conducted in Rio Rico with FBI assistance; and the FBI says it is conducting an “extensive” roadway search near the area where Guthrie went missing.
• We don’t know: Any publicly confirmed suspect, motive, where Guthrie is, or the full verified sequence of events leading up to her disappearance.