Streaming now at https://abc7chicago.com/watch/live/11064984/. The gunfire - which erupted in three separate locations - began when police broke up a group of 250 to 400 teenagers who had gathered under a pier and were staging fights, Jacksonville Beach Police Chief Gene Paul Smith told reporters Monday. READ MORE | https://abc7chicago.com/shooting-jacksonville-beach-florida-active-shooter/14539319/