Possible Clues:

• '... ... and the Forty Thieves' (Arabian Nights)
• With 40 thieves, he's a fictional woodcutter
• He may get bail to a degree, even in thievish company
• Woodcutter who stole from thieves
• Early password user
• His enemies got fatally jarred
• "Open sesame" speaker
• Gilbert, inter alia, was associated with 40 1 down
• Storied cave opener
• Chopper recovering property stolen by scores of criminals