The Coast Guard Cutter Blackthorn bell tolls honoring fallen shipmates during the 37th annual Blackthorn memorial service in St. Petersburg, Friday, Jan. 27, 2016. The Blackthorn sank after colliding with the tanker Capricorn near the Sunshine Skyway Bridge, in St. Petersburg, Jan. 28, 1980, resulting in the Coast Guard's worst peacetime disaster. U.S. Coast Guard photo by Petty Officer 1st Class Michael De Nyse