Incident happened on Lehmann st just south of Diversey Pkwy (pretty close to the Clark/Diversey/Broadway intersection). I was babysitting and had just gone outside and the bike was fine, walked down the street to the corner when these two guys ran around. They were kind of loud and yelling, and I was immediately suspicious. I'm pretty protective over my new bike (I LOVED it) and so I kept an eye on them until they went down another street... One was black and on a bike, and the one behind him was a white guy. I noticed them checking out bikes a little, so thats why I was suspicious. Anyways, when they were gone I rounded the corner and went to grab a coffee and came back maybe 20 minutes later and it was gone. So I am pretty sure it was those guys who took it. SO wish I stayed longer or said something or anything, really!