Nalin, knowing he could not bear the coffin alone, focuses on making sure it goes down level before turning towards the mob and drawing his kukris.
Gentlemen, there is no need for further violence here. Go away, and let us bury our friend in peace. I can tell you for certain that there are no undead here. Call it a gift I have.

Spoiler: OoC
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Your call if this is counting more as Intimidate or Diplomacy. It's a bit of both: polite request with implied violence if not indulged. Modifier is the same either way.
(1d20-2)[10]
Also, using Soul Seer to confirm the "no undead here" suspicion.