The Okaloosa County Sheriff’s Office is investigating an apparent drowning that took place in the Gulf of Mexico this morning around 8:15 off Okaloosa Island. Witnesses say the 40 year old victim, address unknown, had been swimming alone near The Boardwalk at 1450 Miracle Strip Parkway. They then noticed he could no longer be seen. A man swam out to check on him and pulled him ashore. EMS and Beach Safety personnel performed CPR and rushed the individual to Fort Walton Beach Medical Center. He was pronounced deceased a short time later.