ST. PETERSBURG, Fla. — A 'Stop the Violence' event turned violent when gunfire broke out during an outdoor boxing match in St. Petersburg Saturday night. 

A man was killed during the shooting at the Skyway Plaza, where the "neighborhood boxing league" event was taking place. According to St. Pete police, a temporary boxing ring was set up in the back parking lot. 

Spectrum Bay News 9's Trevor Pettiford confirmed that St. Pete Councilwoman Lisa Wheeler-Bowman owns the property and leases it out. She said the victim who was killed was the brother of an employee of hers. Police have identified the victm as Trevon Barton, 21. 

Police said around 200 people were at the event when two groups got into an altercation and shots were fired. Four other people, two men and two women, were injured from the gunfire. 

So far, one person has been arrested, according to police. Robert Cooley, 21, is charged with carrying a concealed firearm and discharge of a firearm in public. 

Anyone with information is asked to call St. Petersburg Police at 727-893-7780.