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David Amess killing: suspect referred to Channel counter-terror scheme in 2014
By Vikram Dodd & Dan Sabbagh
Can Online Safety Bill tackle social media abuse of MPs?
By Jennifer Scott
CCTV of suspected Islamist terrorist Ali Harbi Ali just hours before murder of Sir David Amess
By Glen Keogh, Martin Robinson & Rebecca Camber
British lawmaker dies after stabbing: Live updates
By Melissa Macaya, Melissa Mahtani & Aditi Sangal
Fatal stabbing of British lawmaker David Amess called terrorist incident by UK police
By Jo Shelley, Nic Robertson & Rob Picheta
David Amess: MP’s killing declared a terrorist incident
By Vikram Dodd, Peter Walker & Matthew Weaver
The Observer view on the killing of Sir David Amess
By Observer Editorial
Southend Tory MP David Amess dies after being stabbed multiple times by knifeman
By Dan Sales, Martin Robinson & Katie Feehan