The complete message is,
Let ConversationThis seems to be a common line among medical examiners and forensic specialists, old enough to have been originally written in Latin:
Cease. Let Laughter
Flee. This is the Place
Where Death Delights
To Help the Living.
Taceant colloquia. Effugiat risus. Hic locus est ubi mors gaudet succurrere vitae.
But I can't determine the source.