Florida police are searching for a gunman who walked into a Crossfit gym Monday and killed an instructor.

Richard Allen Millsap was leading a workout class at the Mosaic fitness center in Winter Garden when a man entered around 7 p.m., and fatally shot him, MyFoxOrlando.com reported. 

The Winter Garden Police Department have released a sketch of the suspect based on the description from witnesses, who said the shooter wore a hat and sunglasses. 

The gunman reportedly left the gym in a getaway vehicle.

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