A valuable painting was stolen from the Liars' Club, but the police are having a hard time identifying the culprit because every statement made by a member of the Liars' Club is false. Only four members visited the club on the day that the painting was stolen. This is what they told the police:

• Ann: None of us took the painting. The painting was here when I left.
• Bob: I arrived second. The painting was already gone.
• Chuck: I was the third to arrive. The painting was here when I arrived.
• Tom: Whoever stole the painting arrived before me. The painting was already gone.

Who of these four liars stole the painting?