Surfing superstar "Mad Dog" Marcio Freire died Thursday at the age of 47 while surfing in the waters off Portugal. https://www.msn.com/en-us/news/world/mad-dog-marcio-freire-dead-surfing-superstar-dies-at-47-after-falling-into-giant-waves/ar-AA1639yH?ocid=msedgntp&cvid=17a25dcc250c4f9fbcc0f13d6264a97c GO4AWILDRIDE