Manchester Concert Attack Kills At Least 22

British police have identified a 22-year-old British man as the bomber who attacked the Manchester Arena Monday. They say Salman Abedi detonated a homemade bomb at the end of an Ariana Grande concert, killing at least 22 children, teens and adults, and injuring many dozens more.

Tuesday morning, British Prime Minister Theresa May said: "It is now beyond doubt that the people of Manchester and of this country have fallen victim to a callous terrorist attack. This attack stands out for its appalling, sickening, cowardice."

Greater Manchester Police Chief Constable Ian Hopkins said Abedi is of Libyan descent, and that "the priority remains to establish whether he was acting alone or as part of network."

Muhammad Fraser-Rahim, executive director for North America of Quilliam International. He tweets @mfraserrahim.