.................... TAMPA, Fla. (WFLA) – Authorities have entered their third week in the search for Nancy Guthrie, the 84-year-old mother of "Today" show host Savannah Guthrie, who is believed to have been abducted from her home near Tucson, Arizona on Jan. 31. NewsNation Senior National Cor respondent Brian Entin has been following the search since the beginning and joins WFLA's JB Biunno and the WFLA Stream Center team for a live QA on Monday. The livestream can be viewed in the video player above beginning at 12 p.m. EST. ‘WE STILL BELIEVE’: Savannah Guthrie addresses mother’s kidnapper in new video Latest on the search for Nancy Guthrie Late Friday night, a Pima County Sheriff's Office SWAT operation ended with three people being detained, but no arrests were made. Attention returns now to a pair of black gloves found in a field about two miles away from Guthrie's home last week. They were shipped to a lab in Florida for DNA analysis after investigators determined they could match the gloves worn by a masked suspect who was caught on camera at Guthrie's front door the night she disappeared. Authorities believe the holster worn by the suspect was purchased at Walmart. Investigators are poring over store surveillance video for any possible leads, according to NewsNation. NewsNation reported that officials used a device known as a “signal sniffer,” mounted on a helicopter, in an attempt to detect Guthrie's pacemaker. The helicopter was spotted flying low over the area. The sheriff's office continues to follow up on the tens of thousands of tips that have been submitted to its hotline. In a video posted to social media Sunday, Savannah Guthrie renewed pleas for information leading to her mother's safe return, and told her captor, “It is never too late to do the right thing.” “We still have hope, and we still believe,” Guthrie said in the video. “And I wanted to say to whoever has her or knows where she is that it’s never too late, and you’re not lost or alone. And it is never too late to do the right thing, and we are here, and we believe … in the essential goodness of every human being.” Anyone with information concerning this case is asked to contact the FBI at 1-800-CALL-FBI (1-800-225-5324) or submit a tip online at tips.fbi.gov. ...read more read less