The Westminster attacker had been investigated by MI5, the PM reveals, as a second victim is named and eight people are held.
The man was investigated some years ago, MPs are told, as the IS group says it was behind the attack.
MPs pay tribute to Wednesday's victims and the PM says "we saw the best and worst of humanity".
Mourners line the streets for ex-IRA commander turned political peacemaker Martin McGuinness.
The judge criticised police for treating Michael Lane's victim Shana Grice as the "wrongdoer".
Twenty year-olds may have to work till the age of 70, with millions more having to work till 68
The new clouds include the rare, wave-like asperitas, after a long campaign by skywatchers.
Pope Francis is confronted by a playful three-year-old in St Peter's Square, but laughs it off.
Government forces retreat as the district headquarters falls into militant hands after a year-long battle.
The dump is used to supply the military in the east and officials say the blasts were sabotage.
A man is arrested in the Belgian city of Antwerp on suspicion of driving at a crowd, police say.
An officer is suspended after a film shows him headbutting a Palestinian lorry driver in Jerusalem.
Julia Samoilova has been barred from appearing at the contest in Kiev over a visit to Crimea.
A four-year-old boy saved his mum's life by using her thumb to unlock her iPhone and then calling 999.
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