Penal Code 192 PC - Voluntary Manslaughter - California Law
"... Voluntary manslaughter is a lesser included offense to murder. Prosecutors rarely file Penal Code 192 as an original charge. The offense usually comes up in murder cases, where the accused admits to killing the victim, but seeks to have the charge reduced from murder to manslaughter. Prosecutors in a murder case may agree to a plea bargain in which the accused pleads guilty to manslaughter in exchange for a dismissal of the murder charge. ..."
Penal Code 187 PC - California Murder / Homicide Law
^Link to information on difference between 1st and 2nd degree murder.
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I saw your earlier post. Good thinking on your part, and every state is so different. All I can say is that California is not Texas when defining "heat of passion".
The shooting of Kate Steinle case is an interesting trip through California charging. Shooter Garcia Zarate was initially charged with 1st degree murder, later reduced to 2nd degree murder for the trial, and the prosecutor chose lesser included charges including involuntary manslaughter as well as an enhancement for using a gun (skipping the rest of charges as not applicable).
Shooting of Kate Steinle - Wikipedia
I'm curious about the psychology of a killer based on their choice of weapon. I understand that weapon choice usually comes down to opportunity and which type of weapon is available at the time of the crime, however, if the perpetrator has access to multiple weapon types, what is the deciding factor? In spousal murder, why wouldn't a perpetrator choose a knife? Every house has knives.
In my opinion, a crime of passion would most likely involve closer contact between the perpetrator and victim (stabbing, strangulation, etc.) A gun feels more like an execution and impersonal to me.
I've been trying to find resources but I haven't had any luck yet. If you happen to know of any, please inform me so I can base any future opinions on fact.
Amateur opinion and speculation