They used a booby trapped picture frame and cassette player according to the vid.
According to al Shayea, they were not trained in Somalia- they send fighters to Somalia and Afghanistan and Iraq, but Hamas rejected Yemeni volunteers who came to Gaza.
Yemen: Al-Qaeda reveals new information on attacks against Koreans from the Yemen Post
The recent suicide attacks against South Koreans tourists in Yemen, four of whom were reported killed last March, have been detailed by al-Qaeda in a new video statement released on June 27 entitled “I Have Won I Swear to Kaaba’s God.”
The videotape was released through the jihadi media outlet Al-Malahim (al-faloja.info, June 28), reporting that the two separate attacks against South Korean official investigators and tourists in March were premeditated. An al-Qaeda’s approach which some analysts say it seems destined to damage the government’s reputation. (Read on …)