[caption id=”attachment_6168" align=”aligncenter” width=”519" caption=”File Photo Credit: sharkireland.com”] [/caption] Last Friday, on the 4th of June, San Diego diver Brian L Kirkpatrick was diving with Waterhorse Charters aboard the San Diego charter dive boat the Humboldt. They had just finished a third dive at a dive site called Lobster Shack, on North Island, in the Coronados Islands, Mexico. They had pulled up anchor between 2 and 3 pm and were preparing to depart. Mr. Kirkpatrick was on the fly-bridge with Captain Greg Hatem when they noticed the dorsal fin of a large shark on the surface of the water, about 200 yards from the boat.