Art of Murder 3: Cards of Destiny Hints

Who can help me interpret the sequence?

  • 1 of 4: Ask around.
  • 2 of 4: Especially talk to those who have a lot of waiting time.
  • 3 of 4: No, not the doorman, but the bomb expert.
  • 4 of 4: With the hint of the card value, the whole combination can be concluded as 6812.