MD and MB 2738—, and the recall expanded to cover those lots and any bottle of extra-strength capsules (from any lot) purchased in the Chicago area, one of the largest pharmaceutical recalls ever. A multi-agency investigation found the tampered pills to have been sold or on the shelves at a variety of stores in the Chicago area, including two different Jewel Foods locations (one in Arlington Heights, one in Elk Grove Village); an Osco Drug store (in Schaumburg); a Walgreens and a Dominick's (both in Chicago); and a Frank’s Finer Foods (in Winfield). One bottle had been purchased but, due to an off scent, not yet used by Linda Morgan, wife of Judge Lewis V. Morgan. In an effort to reassure the public, Johnson & Johnson, the manufacturer of Tylenol, distributed warnings to hospitals and distributors and halted Tylenol production and advertising. After other incidents, like strychnine added to Tylenol bottles in California, a nationwide recall of Tylenol products was issued on October 5, 1982; an estimated 31 million bottles were in circulation, with a retail value of over US$100 million (equivalent to $ million in ). The company also advertised in the national media for individuals not to consume any of its products that contained acetaminophen after it was determined that only these capsules had been tampered with. Johnson & Johnson also offered to exchange all Tylenol capsules already purchased by the public for solid tablets. Customs at airports outside the US were asking visitors if they brought Tylenol medicine with them. Police investigation The tainted capsules were found to have been manufactured at two different locationsPennsylvania and Texassuggesting that the capsules were tampered with after the product had been placed on store shelves for sale. The police hypothesis was that someone had taken bottles off shelves in local stores of the Chicago area, placed potassium cyanide in some of the capsules, and then placed the packages back on the store shelves to be purchased by unknowing customers. In addition to the five bottles that led to the victims' deaths, a few other contaminated bottles were later discovered in the Chicago area. In early 1983, at the FBI's request, Chicago Tribune columnist Bob Greene published the address and grave location of the first and youngest victim, Mary Kellerman. The story, written with the Kellerman family's consent, was proposed by FBI criminal analyst John Douglas on the theory that the