Ernesto Garnica Jr., 28, and Roberto Robert Franco Jr., 27, were both kidnapped in separate incidents in 2017, and have not been seen or heard from since, leaving their families anguished.
U.S. citizens Hugo Monfort, 9, and Aranza Monfort, 16, have not been seen or heard from since last Friday after the siblings left a home in the Mexican northeastern state of Nuevo León.