A one-time Black Lives Matter movement leader in Iowa City was arrested after allegedly lying to authorities about a killing that took place in his apartment. Mazin M. Mohamedali, 20, was arrested Saturday and faces one count of accessory after the fact. Police reported that Mohamedali, who previously identified himself as a leader of a racial justice group called the Iowa Freedom Riders leader, knew that 19-year-old Quincy Russom had been killed in his Iowa apartment on Feb. 12 during a suspected robbery but waited to call 911. Police also said that he gave false descriptions of people involved with...