Did Bank Robber Plan to Steal the Kitten, or Grab It Last-Minute?

A man arrested for trying to rob a Maryland bank was carrying a stolen kitten. He'd visited the pet store almost every day for two weeks, always looking at the same three-month-old kitten. Police now face a key question: Did he decide in advance to steal the cat and use it during the robbery, or did he just grab it on impulse when he acted on July 13?