Lloyd W. Krohn at Isle Royale National Park

Lloyd W. Krohn was 55 years old when he was drowned in Lake Superior while doing Scuba diving. According to officials, Lloyd was among the three divers who were planning to explore the Canadian cargo vessel called the Kamloops that sank in 1927. When they reach their target depth of 200 feet, the other divers notice that Lloyd was having trouble. He was immediately sent to the surface where the other crew members bring him to the boat but he was breathing.

Link to story: https://minnesota.cbslocal.com/2013/07/15/minn-man-dies-during-shipwreck-dive-at-isle-royale-park/