“Felony murder” is not “murder which is a felony” but “murder where malice is established not by, by the fact that the death was the consequence of the commission of a felony by the perpetrator, rather than by intent to kill or any of the other alternatives”.
> Obstructing federal officers in their duty is a federal offense
There is no reasonable case, based on any of the video I've seen, continuously from before to through the incident, to be made that she could reasonably be perceived to have been doing that when they exited their vehicle and accosted her.