Prosecutors say a South Chicago man sold seven firearms, including a rifle and two ghost guns, to an undercover federal agent during four separate meetings on a Walgreens parking lot. Judge Ankur Srivastava ordered Jermaine Minor, 23, detained to await trial. The sales took place between May and September last year, according to court records, but police did not arrest Minor until a few days ago. No reason for the delay is given in the court file. An undercover agent with the Bureau of Alcohol, Tobacco, Firearms, and Explosives bought the guns from Minor during meet-ups at Walgreens, 9148 South...