Episode #1.7 - S1-E7
Factual error: The victim has been shot while he was lying in the coffin with his arms crossed. Somehow, he keeps his arms perfectly crossed even when he's dead, despite being carried around in a casket propped in vertical position merely a little more than 15 minutes later. Rigor mortis takes way longer to begin, his lifeless arms would have flailed off position a long time before, not stayed in the dramatic mummy position with no supports to hold them in place. (00:04:30)