A teenager has died after a drowning at a Brevard County beach, police said.Cocoa Beach police said the incident happened Saturday afternoon at Lori Wilson Park as worsening weather conditions brought rough surf. Officers said a 12-year-old and a 17-year-old were caught in the surf and struggling to swim.Lifeguards rescued the 12-year-old, police said, then began an extensive search for the 17-year-old. The older teen was later found submerged a…