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The FBI released<\/a> new details about the masked perpetrator suspected in the kidnapping of Nancy Guthrie, as investigators continue to review the more than 13,000 tips that have come in from the public.<\/p>\n The male suspect, who was pictured in video footage captured from the 84-year-old\u2019s home the night of her abduction, has an average build and is approximately 5\u20199\u201d\u20135\u201910\u201d tall, according to an FBI forensic analysis. He was seen with a black, 25-liter Ozark Trail Hiker Pack backpack.<\/p>\n \u201cWe hope this updated description will help concentrate the public tips we are receiving,\u201d the bureau said in a statement. The FBI also announced it was increasing the reward in the case to $100,000.<\/p>\n Authorities in Arizona<\/a> have continued to appeal to the public for video footage recorded near Guthrie\u2019s home in the month leading up to her disappearance, while her daughter, Today show host Savannah Guthrie, has pledged to \u201cnever give up\u201d.<\/p>\n In a post on X<\/a>, formerly Twitter, on Thursday afternoon, the Pima county sheriff\u2019s department asked for \u201cany video showing vehicles, traffic, pedestrians, or suspicious activity\u201d taken between 1 January and 2 February from an area roughly 2 sq miles in radius from the Guthrie residence in the Catalina Foothills area north of Tucson.<\/p>\n The post did not say why the request was made, but followed a flurry of tips \u2013 about 4,000 \u2013 that came in during the 24 hours since the FBI on Tuesday released door camera video and still images<\/a> of a masked and gloved suspect outside Guthrie\u2019s home early on 1 February.<\/p>\n Despite the surge of information, no new suspects have been identified in the 12-day hunt for the abducted 84-year-old.<\/p>\n Savannah Guthrie posted<\/a> home video of her family on social media on Thursday, writing: \u201cOur lovely mom. We will never give up on her. Thank you for your prayers and hope.\u201d<\/p>\n A man detained at a traffic stop on Tuesday in Rio Rico, about an hour south of the Guthrie residence, was released without charge<\/a> after several hours of questioning.<\/p>\n On Wednesday, authorities conducted an \u201cextensive search\u201d of multiple roadways close to the Guthrie home. KVOA, the local NBC-affiliated TV station, reported<\/a> the recovery of a pair of black gloves, which have been submitted for DNA testing, but said it was too soon to know whether they were connected to Guthrie\u2019s disappearance.<\/p>\n The Pima county sheriff\u2019s department, which said it was sifting through 4,000 calls received since publication of the images, has not held a media briefing for a week, and said on Wednesday in a post on X<\/a> that none would be held unless there was \u201ca significant development\u201d to report.<\/p>\n KVOA said the lack of progress in the investigation was frustrating and causing anxiety for local residents. \u201cWe are very worried. The neighbors are all worried, and we do not know who this kidnapper is, what he\u2019s done with Nancy Guthrie. We don\u2019t know what\u2019s going on, so we\u2019re really concerned,\u201d Marla Handler, a neighbor of the missing woman, told the outlet.<\/p>\n The station reported that Ring doorbell camera users in Catalina Foothills were asked by investigators for footage from 11 January from 9pm to midnight, and said there was \u201cfootage of interest\u201d from the morning of 31 January relating to a suspicious vehicle. Authorities have not confirmed the information.<\/p>\n