Roberto López Falcón, a Cuban immigrant and fifth-grade ESL teacher at Hart Elementary School in Austin, was arrested on September 3, 2025, during a routine check-in appointment in San Antonio. He entered the U.S. without authorization in March 2022. López Falcón has been held at a federal immigration facility in Karnes County for three weeks with limited communication access. The school district replaced him with a substitute teacher and offered counseling services to students, though initially told them he was sick rather than explaining his detention.