#ICYMI: An ATF investigation led to the arrest of a suspect who sold multiple firearms, including machineguns, to undercover agents. Many of the firearms were l

#ICYMI: An ATF investigation led to the arrest of a suspect who sold multiple firearms, including machineguns, to undercover agents. Many of the firearms were linked via NIBIN to violent crimes. ATF special agents from @​ATF_Chicago and Special Response Team 1 expertly and safely served the search a…