Thompson, along with three former West Orange-Stark High School teammates, are being sought as suspects in a spring break assault.
"We are still in the process of gathering all of the facts in Deionte's situation," Alabama coach Nick Saban said in a statement released Friday. "He has been excused today to cooperate with law enforcement in this matter.
"Once we have a better understanding of what happened, we will make a determination as to what needs to be done in terms of the appropriate course of action moving forward."
According to the report, 18-year-old Noah Frillou was severely beaten and knocked unconscious at Crystal Beach on March 18 over spring break. Frillou reportedly suffered broken bones and a concussion.
Thompson, a former four-star prospect in the Class of 2015, played in 14 games last season and tied for the team lead with eight tackles on kickoff coverage.