MIAMI — The Coast Guard suspended its search for a missing 74-year-old man near Big Pine Key, Thursday. Missing is John Gyurtsak, last seen in his 34-foot pleasure craft, Thermocline, departing from Big Pine Key, Monday prior to 2 p.m. “We have made the difficult decision to suspend our search,” said Cmdr. Blanca Rosas, search and rescue mission coordinator with Coast Guard Sector Key...