Bulletin world briefing: Boy kills his grandparents and schoolteachers in Thailand shooting

Here are five stories from across the globe you may have missed

• Thailand shooting: Boy, 14, kills his own grandparents and schoolteachers
• Flight crew braves complete darkness in Antarctica to save American
• Chilling discovery as snow melts away in Nepal’s Rolwaling Valley
• Gigantic WW2 bomb detonated in Slovakia after surfacing in Danube River
• Giant monitor lizard on the loose in Italy as major search launched