Canadian authorities have named the suspect in the Edmonton terror attack as Somali refugee Abdulahi Hasan Sharif, a known extremist investigated by police in 2015.
Edmonton Police Service has also released a graphic video of the initial phase of the attack, in which Sharif ploughs a car through a police checkpoint near the Commonwealth Stadium and sends an officer flying through the air, before exiting the vehicle and stabbing him multiple times.
WARNING: Disturbing images.
Edmonton police released security video showing the terror attack where an officer was rammed with car, stabbed pic.twitter.com/UlvB8TBdjI
— Globalnews.ca (@globalnews) October 1, 2017