Possible Clues:

• Boy sent to head, a serious offender
• Criminal's genetic material? Something fishy about it
• Inject genetic material to cure criminal
• Child sent to head as criminal
• Young nanny has head screwed on in Paris, for example
• One who seizes child by the head
• Ransom seeker
• Fool to drop off a criminal with hostage
• Child sent to head, one breaking the rules
• Ransom demander