LAS VEGAS: A taxi driver and another man were arrested on suspicion of being in cahoots with a wig-wearing gunman who snatched $33,000 in poker chips from a Las Vegas casino, police said Friday. The search was still on, however, for the robber who threatened a poker dealer with an unloaded gun before fleeing in a waiting taxi. The stickup was the second grab-and-run heist in Sin City in two months. In December, a bandit snatched $1.5 million in chips from a craps table at the Bellagio casino then sped away on a motorcycle. Police do not believe the holdups were connected or were linked to organized crime.