Nancy Guthrie live updates: Suspect's clothing may have been purchased at Walmart; family cleared

Two weeks since Nancy Guthrie was abducted from her home on Feb. 1, the FBI is turning its focus away from family and the two individuals who were briefly detained for questioning and toward other potential leads, sources briefed on the investigation told ABC News.

The sources said investigators are leaning away from any relatives of Nancy Guthrie as suspects.

The sources also said investigators are leaning away from both the man who was stopped in a car in Rio Rico last week and the man whose home was searched Friday night.

However, as Pima County Sheriff Chris Nanos told ABC News on Friday, "Nobody is fully cleared" until the kidnapper is in custody.

-ABC News' Aaron Katersky

A federal court-ordered search warrant was executed at a residence near Nancy Guthrie's home based on a lead investigators received, the Pima County Sheriff's Department confirmed Saturday.

No arrests were made but a traffic stop was also conducted by investigators. A person was questioned but no arrests resulted from that incident, according to PCSD.

"We remind the public that there's a reward of up to $100,000 for information leading to the location of Nancy Guthrie and/or the arrest and conviction of anyone involved in her disappearance. Call tips in to 1-800-CALL-FBIor 520-351-4900," PCSD said in a statement.

-ABC News' Aaron Katersky

The FBI and Pima County Sheriff's Department briefly detained a second man and searched a house a short drive from Nancy Guthrie's Catalina Foothills neighborhood late Friday into early Saturday, but there was no arrest and no sign of Guthrie, law enforcement sources told ABC News.

The sources described the activity as "tracking leads" associated with the Guthrie investigation.

The person detained, who was not identified, is the second individual to be questioned in connection with the case and then released.

Sheriff Chris Nanos told ABC News no one is fully cleared until there's an arrest. A man who identified himself as Carlos was detained and released earlier this week in Rio Rico, Arizona.

It was not immediately clear what led authorities to the home about two miles from where Nancy Guthrie lives but it's within the radius where investigators have asked residents to check their home security systems for footage from Jan. 1 - a month before her abduction - to Feb. 2, the day after she was taken. Investigators have said they are interested in suspicious persons or vehicles that may have been caught on camera.

-ABC News' Aaron Katersky

The Pima County Sheriff's Department, in a statement posted to social media, said that "law enforcement activity is underway at a residence near E Orange Grove Rd & N First Ave related to the Guthrie case."

Authorities did not release any further details but said that because this is a joint investigation, at the request of the FBI, no other information is currently available.