A German tourist died Monday after being severely attacked by a shark while swimming in the ocean near the Canary Islands. The 30-year-old woman lost a leg from the bite and died while she was aboard a Spanish rescue helicopter, according to CBS. The attack came as the woman was swimming beside a catamaran, according to Reuters. At the time of the attack, the catamaran was located between the islands and West Africa, police said. The incident took place about 320 miles south of Gran Canaria island. CBS reported that a call for help went out at 12:55 GMT, but it was not until about 6 p.m. GMT t…