The shooting happened around 5:45 p.m. on March 4 at Royal Palms Beach, police say.
Investigators say a group of family and friends got into an argument with a group of gang members and it escalated to a fistfight, then a shooting.
First responders treated four people at the beach for gunshot wounds. A fifth injured person showed up at the hospital.
Ortega is facing multiple charges including attempted murder.