Navy SEAL training is widely regarded as the most intense and vigorous military training in the world. In a heartbreaking turn of events, Kyle Mullen, 24, passed away on February 4th after completing the grueling Hell Week with his BUD/S class. The cause of his death is still being investigated. Read on to learn about Kyle Mullen's life and unfortunate death. TRENDING: … [Read more...] about Navy SEAL Candidate Dies