What began with a quick grab-and-go theft Saturday at the San Antonio Aquarium -- the suspect leaving a trail of water drops as he hurried away with his dripping prize of a small but very much alive shark -- ended Monday with the safe return of "Miss Helen" to her tank at the aquarium. The 16-inch female horn shark was taken during a heist that aquarium officials said was no spur-of-the-moment, let's-steal-a-shark thing. "The suspects staked out the pool for more than an hour" to wait for the right moment, the aquarium said in a statement. The search for the...