The RCMP arrested Suliman Mohamed, 21, in the Vanier area in Ottawa; he is charged with participating in terrorist activity and is linked to twins Ashton and Carlos Larmond, 24, who were arrested on Jan. 9 on suspicion of terrorism-related offenses. So far only two people, Carlos Larmond and Hasibullah Yusufzai, 25, of Vancouver, have been charged under Canada’s 2013 Combatting Terrorism Act for attempting to travel abroad for terrorist purposes.