3 arrested in connection with Warren fentanyl ring, more arrests likely Police still seek Isaac Lee Bannerman Tags: Terry Michael-Jamall Gaskins, Nathaniel Clark, Jermaine Tate (WDIV) WARREN, Mich. – An investigation into a large-scale group alleged to be manufacturing and distributing fentanyl across Metro Detroit culminated in the arrests of three people. According to authorities, Warren police’s Operation S.N.O.W. (Stopping Narcotic Overdoses in Warren) began investigating in November after the death of a 47-year-old resident. Police said they identified multiple key members and locations associated an organization distributing fentanyl. Early morning raids were conducted by Warren police units at two locations in Detroit. Police said evidence seized ties the group to more than 24 overdoses in and three deaths in Warren.