Stephen Esmond, an administrator at the Tatnall School in Wilmington; his wife, Theresa Devine, a dentist; and their two teenage sons, who attend Tatnall, became seriously ill two days after methyl bromide was sprayed in a condominium under the one in which they were staying. On March 20, paramedics were called to the condo, where they found Esmond unconscious and the three other family members having seizures. The family initially was treated in the Virgin Islands and then airlifted closer to home.