A Minnesota family is desperate for answers as 16-year-old Tivona Cardenas remains missing-can you help bring her home? 🌐 #News #MinneapolisMN #Minnesota #MissingPerson. MINNEAPOLIS, MN – It’s a situation no family ever imagines-waiting for their child to come home and realizing something is terribly wrong. Tivona Cardenas, a 16-year-old girl from Andover, Minnesota, has been missing since September. With weeks passing and no sign of her, the Minnesota Bureau of Criminal Apprehension (BCA) and the Anoka County Sheriff’s Office are turning to the public for help in bringing Tivona home safely.