Police say Wilson targeted the two victims after a managerial dispute at the luxury gym.
A helicopter from the Miami-Dade Fire Rescue landed on the field of Coral Gables Senior High School and transported the wounded to Jackson Memorial Hospital's Ryder Trauma Center.
Before his death, Wilson was considered one of the most popular trainers at the gym. Reports claim he was usually clean shaven but some of the witnesses who saw him Saturday morning noted he looked disheveled.
Miami-Dade Police Department said detectives responded to the scene of the shooting in Coral Gables that resulted in one death. He told Local 10: 'The scene is secure and no one is in danger at this time.'
Source: Miami Herald