Possible Clues:

• Joined the crew
• Leo, maybe journalist, definitely not up to be recruited
• Took benefit from evidence collected at the centre on criminal boss
• Took benefit from evidence bearing on criminal boss
• Claimed benefit for evidence linked to English gangster
• Autograph on last wine is from The Godfather - that's why someone had a non-working benefit
• Work ending, so claimed benefit
• Enlisted