Fifty Dead in Orlando Nightclub Shooting

What we know about the Orlando killer, Omar Mateen? Interviews with his ex-wife, and with David Ovalle of the Miami Herald. Uefa launches an investigation into the violence among football fans in Marseille, and the French Interior Minister calls for a ban on alcohol in 'sensitive areas' on match days.

Plus, the use of laser technology in Cambodia has revealed the world's largest pre-industrial empire below the jungle, close to the temples of Angkor.