Earlier in the day, Mullen and his Basic Underwater Demolition SEAL (BUD/S) class successfully completed Hell Week, an assessment event during the first phase of the Navy SEAL attribute assessment and selection pathway.

Mullen was not actively training at the time of his death. The cause of his death is currently unknown and an investigation is underway.

Media queries can be directed to Naval Special Warfare Command’s media officer at kara.l.handley.mil@socom.mil.