[OKSooner]

IF the evidence was obtained by arson, and a 67-yo art dealer died a horrific death in the fire, someone needs to go down for murder.

First degree, because the arson was premeditated?

[Cboldt]

-- First degree, because the arson was premeditated? --

Roughly yes, in New York state. NY Penal Code 125.27. The arson has to be first of second degree, see NY Penal Code 150, for that one - requires knowing another person is in the building.