Possible Clues:

• Corruptly dealt with man's sleeping partner?
• Took the money for small boat in foundation
• Gave someone an inducement to find boat in the bottom of river
• Paid off kid found in part of garden
• Induced to bury bone in garden
• Gave some money under the table
• Brother visiting mafiosi's final resting place is paid illegally
• Induced improperly
• Given a sweetener
• Plot to acquire boat paid off