Nimoy was a Jew, so lets hope he gets a proper Jewish burial tonite!
Otherwise a Shomer will have to sit with him until Sunday as Jewish custom forbids burial on the sabbath.
After Death
"Immediately following a death, the deceased should not, according to Tradition, be left unattended. A Shomer, or "watchman," stays with the deceased from the time of death until the funeral and burial. It is appropriate for members of the family to stay with the deceased and the custom in many communities is for the family to provide the Shomer."