In Building world (second time), outside the pet shop there should be pieces of paper scattered about. Walk up to one and press [Action]. If done correctly, Henry should read it. It will be a news report on a massacre which happened at the pet shop, in which all the animals were gunned down by machine gun. Once you have read it, you should hear animal noises and gunfire coming from the shop. Enter the shop to find blood everywhere, gun holes in the walls, and animal cages spread out everywhere.