My cousin and I were installing a boiler at a house in East Chicago on Thursday, at about 10AM we went out to the work van to get some tools and two black guys walked up to us and asked if we had change for a $20. We both said no, and one of them pulled out a Glock, racked the slide, and told us to give them everything in our wallets. We did and they said, "don't call the police because we know where you're at, have a nice day". They started walking away, got about half a block away and turned back around and started coming back. I drew my SW1911, told them to stop and fired one round. It looked like he still had the gun in his hand so I fired another round, and they took off around the side of the building, and my cousin and I took off around the other side because my grandpa (who we're working for) was in the front of the building. I got up there just as the second guy did (I guess the first one already got across the street), and told him again to stop but he didn't, so I fired another shot and he ran back behind the building and disappeared. We called the cops and when they got there they had the second guy in a squad car already, but he changed out of the NY jacket and black hat into a different jacket and a white doo rag. We told the cops we weren't sure if that was him or not, so they let him go. About 20 minutes later, we went back to work and the cops knocked on the door. They had the same guy again, except this time he had on the NY jacket and the same black hat he wore when they robbed us. We're unsure if they got the other guy, but I'm sure he'll talk soon if he hasn't already. They got $5 from my cousin, and $90 from me, but my grandpa paid it back to me. We're just glad we didn't get hurt, and hopefully they'll both get what they deserve.