更新于：2026年2月16日 / 美国东部时间下午1:45 / CBS新闻
执法部门消息人士向CBS新闻透露，一种用于探测南希·格思里起搏器发射信号的设备，已成为调查人员在第三周持续搜寻她过程中使用的工具之一。
消息人士称，这种名为“信号探测器”的高科技追踪工具已被安装在直升机上，可能帮助侦探精确定位她的位置。信号探测器常用于失踪人口案件，因为它们能够探测到低功率电子信号，例如起搏器发射的信号。
据消息人士透露，搭载该设备的直升机正在事发区域低空缓慢飞行，调查人员仍希望在该区域找到格思里。
这位84岁的女性是《今日》节目联合主持人萨凡纳·格思里的母亲，她于2月1日因未参加教堂活动而被报失踪。此前，她于亚利桑那州图森市的家中半夜失踪，显然是遭到绑架。
她的家人多次公开呼吁格思里平安归来。美国联邦调查局（FBI）最近公布了一名与她失踪案有关的男性嫌疑人描述，联邦当局称该嫌疑人身高约5英尺9英寸至5英尺10英寸，体型中等。
联邦调查局表示，在格思里家的Nest门铃监控录像中，该男子被看到背着一个黑色的25升Ozark Trail徒步背包。亚利桑那州皮马县治安官克里斯·纳诺斯告诉CBS新闻，这种背包仅在沃尔玛独家销售，并称之为目前案件中最有希望的线索之一。
他说，调查人员仍在努力识别监控录像中嫌疑人所穿服装的各个品牌，但他们认为嫌疑人的服装和面罩也购自沃尔玛。
在格思里家附近发现的一只黑色手套，联邦调查局称“似乎与监控视频中的嫌疑人所戴手套相符”，该手套也已接受DNA检测。联邦当局表示，他们于周六收到了这些检测的初步结果，一旦确认，这些发现将被录入FBI国家DNA样本数据库中的“未知男性档案”。该数据库存储有犯罪前科人员的DNA档案，可作为将未知样本与可识别样本匹配的重要工具。
纳诺斯表示，除了从格思里的房产中收集到其他DNA样本外，目前没有更多法医证据指向嫌疑人。
联邦调查局上周将悬赏金额提高一倍，达到10万美元，以奖励提供格思里下落线索或协助逮捕和定罪任何参与其失踪案人员的举报者。当局称，在调查过程中他们已收到两封严肃对待的电子邮件，其中一封似乎是勒索信，要求以比特币支付赎金。
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Signal sniffer to detect Nancy Guthrie’s pacemaker deployed, law enforcement sources say
Updated on: February 16, 2026 / 1:45 PM EST / CBS News
A device to detect emissions fromNancy Guthrie’s pacemaker is among the tools investigators are using as their search for her continues into its third week, law enforcement sources told CBS News.
The high-tech tracking tool, called a “signal sniffer,” has been mounted on a helicopter and may help detectives pinpoint her location, the sources said. Signal sniffers are often used in missing person cases because they can detect low-power electronic signals, such as those emitted by a pacemaker.
According to the sources, the helicopter carrying the device is flying slowly and at a low altitude over the area where investigators are still hoping to find Guthrie.
The 84-year-old mother of “Today” show co-host Savannah Guthrie was reported missing when she failed to show up for church on Feb. 1, after vanishing in the middle of the night from her home in Tucson, Arizona, apparently in an abduction.
Her family has issued multiple public pleas for Guthrie’s safe return. The FBI recentlyreleased a description of a male suspect wanted in connection with her disappearance, who federal authorities say is roughly 5 feet 9 inches or 5 feet 10 inches tall with an average build.
In chilling footage from the Nest doorbell at Guthrie’s home, the man was seen wearing a black 25-liter Ozark Trail Hiker Pack backpack, the FBI said. Sheriff Chris Nanos, of Pima County, Arizona, told CBS News that the backpack was sold exclusively at Walmart and called it one of the most promising leads in the case so far.
He said investigators were still working to identify each brand of apparel worn by the suspect in that doorbell footage, but they believe his clothing and face mask were purchased at Walmart, too.
A black glove found near Guthrie’s home, which the FBI said “appears to match the gloves the subject in the surveillance video,” has also undergone DNA testing. Federal authorities said they received the preliminary result of those tests on Saturday, and, once confirmed, the findings would be entered into an “unknown male profile” in the FBI’s national database for DNA samples. The database stores DNA profiles for people with criminal histories and can be a valuable tool to match unknown samples to identifiable ones.
Not much else in the way of forensic evidence has led investigators to a suspect, Nanos said, although they have collected other DNA samples from Guthrie’s property.
The FBI doubled its reward last week to $100,000 for tips leading to Guthrie’s location or the arrest and conviction of anyone involved in her disappearance. Authorities said they have received two emails throughout the course of the investigation so far that they are taking seriously, including one that appeared to be a ransom note and demanded payment in bitcoin.
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