4242 N Sheridan late this afternoon. One reader says: "Saw 5 cop cars out front of 4242 N Sheridan at 530pm today. A resident told me they evacuated the whole building and the FBI was involved. Also I saw they had a shopping cart FULL of rifles/shotguns out front that I presume they seized inside. I don't have any other information, but thought you might be interested."
Anyone live in the building who can comment on what's going on?
Update: From the comments, "There wasn't any evacuation. They did arrest one guy that I saw and called animal control to handle his dog. The police looked pretty casual and opening the doors to let the residents in and out."
Update 2: From Chicago Breaking News -- "Guns, Gunpowder Seized in Uptown Apartment." Read it all here.
Update 3: And grenades too! From the Sun-Times.