A Miami Palmetto Senior High School teacher is off the job amid an investigation into an alleged sexual relationship with a female student.
Alex Osuna, a marine science and biology teacher and girl's lacrosse coach, resigned from his position Wednesday, amid a month-long probe from the district that led to his suspension from the post.
Sources say that the investigation began after a compromising picture of him and a student surfaced.
Osuna was not criminally charged.