[Kevin]

Is the other suspect being charged with felony murder? If not, why not?

I can buy an involuntary manslaughter charge for Carrillo. I think there's probably enough there for a jury to get involved at some point. Yes, lying about there being a weapon involved is probably the only way to get the police to actually respond to a robbery call in a timely manner where the suspect might be apprehended, but as you can imagine, if everyone did that, it'd put a hell of a strain on law enforcement.

Also, it's not unforeseeable that the police might be more prone to deadly force when misinformed about the existence of a weapon.