The father of Alison Parker, one of two journalists killed live on air, appeals to US President Barack Obama to push through tougher gun laws.
Hundreds of people are feared dead after two boats carrying up to 500 migrants capsize off the Libyan city of Zuwara.
Facebook boast a new record, with more than a billion people using the social network on a single day this week.
'We still had to cover the news,' a colleague of the victims says
Why do some people refer to themselves in the third person?
The corner of England 'like the end of the Earth'
What was One Direction's biggest hit?
The port city selling migrants what they need to go to sea
How did 'MacGyver' become a verb?
Arsenal are drawn against Bayern Munich as English clubs find out who they will face in the Champions League group stage.