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An Arizona sheriff’s department got more than 4,000 calls within 24 hours after the release of videos<\/a> of a masked person on Nancy Guthrie’s porch. Many tips will be worthless. Others could have merit. Experts say one thing’s certain: They can’t be ignored.<\/p>\n Tips can solve crimes \u2014 big or small \u2014 and eerie images of a mysterious male covered head to toe have been the most significant clues shared with the public during Guthrie’s nearly two-week-old disappearance in the Tucson area.<\/p>\n \u201cIt’s a tremendous amount of work,\u201d said Roberto Villase\u00f1or, a former Tucson police chief.<\/p>\n \u201cIn a situation like this, you really cannot do what’s been done without tips and public input,\u201d he said. \u201cThey have processed the scene. But once that\u2019s done and exhausted, it’s hard to move forward without additional information coming in.\u201d<\/p>\n The Pima County sheriff and the FBI announced phone numbers<\/a> and a website<\/a> to offer tips about the apparent kidnapping of Guthrie, the 84-year-old mother of NBC \u201cToday\u201d co-anchor Savannah Guthrie<\/a>. Several hundred detectives and agents have been assigned to the case, the sheriff’s department said.<\/p>\n The FBI said it has collected more than 13,000 tips since Feb. 1, the day when Guthrie was reported missing. The sheriff’s department, meanwhile, said it has taken at least 18,000 calls.<\/p>\n “Every tip is reviewed for credibility, relevance, and information that can be acted upon by law enforcement,” the FBI said Thursday on X, adding that the effort is a 24-hour operation. It said it won’t comment on the tips received.<\/p>\n