Yes. Anyone can be the victim. Anyone can be the killer. It's just: is the felony a substantial cause, and is the defendant guilty of the felony?
Some people feel like Peckham got the shaft because the court says, "it must be assumed that there existed a causal connection between the intoxication and the death" (citing Resler). The legislature actually relaxed the standard in 1965. But then lobbying in the other direction (MADD) causes the 1981 revision we've got now.
The causal connection is between the defendant's unlawful conduct, not just intoxication.
A trial judge must instruct on the affirmative defense if there's evidence to support it. You can't claim your own negligence is your defense. It has to be exonorating evidence.
Note that there is often some time between the accident and the test. In WI, blood alcohol tests are valid if taken within 3 hours of driving. The jury hears that it doesn't create a presumption of PAC, but it's evidence that can go to establish the point. Experts try to extrapolate the "blood alcohol curve" to try to establish the blood alcohol content at the time of the accident.
Portable bar defense: if you have had an accident, you may want to ingest some alcohol in the presence of witnesses. This complicates BAC calculations: the open container violation is way less than OWI.
But both the defense nor the prosecution stressed causation in their theories of the case, and this is clearly a pivotal issue in the elements of the crime.
So when you're reviewing for error, you read the instruction that the judge gave and compare it to the one that should have been given. But there's no specific instruction on causation, and the judge didn't issue one either, so what basis could there be for comparison? So they talk about foreseeability, and what an adequate instruction would have to tell the jury. The court did issue an instruction on recklessness, and that is considered to be sufficient to describe the causal connection. In other words, even though there was no specific instruction on causation, the instruction given did provide the jury with the same essential content.
Reckless homicide has two elements: reclkess conduct and causing death.
The state did prove the reckless conduct: he had ample notice that there was risk (nurses, state agency, etc.).
You can have reckless conduct, but not have causation, and this is a case of that. There's no proof that more staff would have saved the victim. The theory that another staff member would have made it possible to spot the wandering oldster is too speculative to support criminal conviction.
Serebin was found guilty of patient neglect: there's no element of causation in that statute.