I don't remember anything about liver lacerations but a quick google does say it happens: looks like the sternum can slice your liver during compressions[1] (warning: graphic).
No idea on head injuries or a broken neck from "grappling" though.
[1] https://www.sciencedirect.com/science/article/pii/S245224731...
It's not so much broken ribs (though those are possible), but separation from the sternum. Not pleasant, but not particularly problematic (people walk out of the hospital at times within 3-4 days of cardiac arrest as subsequent ROSC (return of spontaneous circulation) after CPR/defib.
And if you survive to ROSC, you're getting a stay in ICU as it is, where things like internal lacerations, aspiration can be treated.
> Gage claims that Tipping wound up with three broken ribs, a lacerated liver, head injuries, and a broken neck. "His heart eventually stopped working because of his injuries" and "he was paralyzed….He had subdural hematomas at three places on the left side and three places on the right side. There is no way that grappling would have caused those injuries the way the LAPD portrayed it."
This is not a failed breakfall. Any questions?
When you're training injury does happen but not in more than one area of your body unless you were literally being beaten to a pulp.
So yes, I'm 100% sure it was a malicious intent if they're claiming that he died during "bicycle training" which oddly included grappling.
Despite protections and whatnot shit happens. Usually in one place, or in an unfortunate combination of two.
Being driven over, pushed through a window, crashed by a piano and drowning is not usual in one session. Looks like this is more or less what this guy had happening to him.