A naked college swim star allegedly bludgeoned a security guard to death using a five-gallon water bottle during an overnight attack at a Hawaiian beachfront resort. 3 The Sands of Kahana in Lahaina, Hawaii, where security guard Michael Dyer was killed. Police only connected the naked swimmer to Dyer’s death after reviewing the building’s security footage. 3 Police only connected the naked swimmer to Dyer’s death after reviewing the building’s security footage. The decorated swimmer was a two-time Maui Interscholastic champion while attending Maui Prep, according to his athlete biography.