British authorities yesterday said they believe Friday’s killing of the MP Sir David Amess was an act of terrorism. Ali Harbi Ali – a 25yo British man of Somali heritage – is being held under the Terrorism Act, giving officials a week to question him. Reports say he was ​​referred some years ago to a scheme for young people identified at risk of being radicalized, but he was not on the radar of intelligence agencies as a potential risk. Amess was a popular Conservative politician for Essex since 1983, and he was stabbed several times while conducting a regular meeting with constituents. He is the 2nd MP to be killed in recent years – Labour’s Jo Cox was killed in similar circumstances by a far-right extremist in mid-2016. PM/Conservative party leader Boris Johnson led the tributes saying “our hearts are full of shock and sadness”.