Any charge under the NY Penal Law article 125 has to approved by the DA's Office in Erie County.<quoted text>/
The department with which I am most familiar would have had the prosecutor on call on the phone and would have dumped that hot potato right into their lap. I predict they would have him charged with voluntary manslaughter before noon the next day and later plea bargain it down to involuntary after the storm died down.
I'll bet the overwhelming number of the open homicides you are talking about are "victimless" homicides
Besides, there is no such charges as voluntary and involuntary Manslaughter in the NYS PL.