Authorities are searching for Kevin McGrath, a 26-year-old man who went missing from a Carnival cruise ship in Miami on Monday morning. He was last seen in his cabin at 2 a.m. wearing a black shirt, shorts and gray sneakers and was reported missing by a family member at 7 a.m. when the ship returned to port. The Miami-Dade Police Department and Carnival are asking anyone with information to contact them.