A 19-year-old Chicago man has been charged with one felony count of possession of an unregistered destructive device in connection with the explosive device that was found Saturday at the Evanston police outpost on Howard Street.
Sergio Chaves was taken into custody Saturday night as a person of interest regarding the case and charged in the U.S. District Court in Chicago on Monday afternoon. Police said he appeared to have acted alone.
Police discovered the device in the back of the building after receiving a tip that there had been an explosive planted at the outpost. The device was made inoperable by bomb squad technicians and the Chicago Fusion Center was notified, police said.