Im just makeing my observation clear so that in later episodes or seasons this will not come by great surprise....
(Brief Observation before Carleys death)
The system is still tracking if carley will remember certain stances taken by the the player such as "Carley is Trustworthy" in the RV a minute prior to carley getting put down like a shotgun faggot spamming in call of duty
I'm going to go out on a limb here and preemptively say, without any calculations, that theoretically a bullet does have enough energy to knock over a person but in practice it won't usually happen if the bullet works the way it is supposed to. Handgun cartridges can generate several hundred ft-lbs of energy at the muzzle, which I would think is sufficient force to at least push an average sized person by some amount. However, a bullet works by causing a disturbance to internal organs and tissue (leading to tissue damage and blood loss, etc.) If all of the bullet's energy went into pushing the person or knocking him back, I would suspect that it would not do a good job of disturbing vital tissue. Therefore, I think it is safe to say that most of a bullet's energy goes into disrupting tissue rather than knocking the person down. I'm sure a fair amount of energy is lost in "pushing," and that it is possible for someone to be knocked down, but I think most of the time the person will just fall after enough tissue/nerve damage or loss of blood or blood pressure.
Carley may have sustained a fatal blow from the She-Devil. But according to science there may be a 10-35% chance the bullet was directed at a time at which carley was shifting body momentum to turn around lessening the damage of the handguns bullet. (Possible Survival) Theres some hope you fanboy faggoteers, just be happy it wasnt a shotgun in call of duty. I did like carley in my group but I have to say her getting blasted and coming back would be better. Minus the hole in her cheek.. The END...