Virginia

It is a racist term to call cannabis "marijuana", because that term was used to tar Mexicans and brown skinned people as being drug addicts, criminals, and lazy in the 1930s (cf. Anslinger). Rather like the effort these days to tar Central Americans and brown skinned migrants as drug addicts and criminals by Fox Noise and other reich wing outlets.

Cannabis doesn't kill, but when a person is "unresponsive", they need care and attention to prevent other causes creeping in. If an unresponsive person rolls over onto their face in bed, they might smother themselves to death.

It's like a drunk rock star dead face down in a three inch pool of water. The booze didn't kill him, drowning killed him. But the death would have been easily avoidable if an unresponsive person had been cared for and not been alone.

So, yes, the mother should face charges for criminally negligent homicide/manslaughter, but I doubt whether murder charges are right. I thought murder required intent to kill or grievously harm.