One of the russian president s biggest critics gunned down steps away from the president ial palace. We have the details on that. A man called the most wanted criminal in mexico caught without a single shot fired. Finally, the dress that broke the internet. How could this dress be different colors for different people . Welcome our viewers in the United States and roontd the world. Im george howell. This is cnn newsroom. We start the show this hour in russia. The Fatal Shooting of an opposition figure there is prompting speculation from his supporters that he may have been targeted by the kremlin. Officials say Boris Nemtsov was walking across a bridge from the kremlin when a car pulled up and someone opened fire. Flowers mark the spot where he fell dead. Russian president Vladmir Putin condemned his killing and ordered a full investigation into who may be responsible. Fred reporter gunned down in the heart of russias capital. Investigators work the crime scene where Boris Nemtsovs bod