The father of Lina Khil, the San Antonio girl that disappeared more than a year ago at age 3, has agreed to take a polygraph test, as first reported by Fox 29 and News4SA on Thursday. Khil, an Afghan refugee, disappeared from a playground near Northwest San Antonio’s Villas Del Cabo apartments during the afternoon of Dec. 20, 2021. San Antonio police invited her parents to take a polygraph test in the early months of the investigation, the Express-News reports.