Sweet.Baby.Cthulhu.
If things were as she represented then he needed shooting.
If not then no wonder he shot her the finger.
It’s evil for reporters to discuss old “charges” without mentioning whether or not there was ever any indictment, trial or conviction. This stuff is in the public record. Why not disclose it? Anybody can “charge” anyone with anything. The press loves moral ambiguity.
It's not unusual for wives to lie about mistreatment in divorce, in order to screw the husband and/or extort a better settlement.
In my opinion, she went to hunt down her husband for the specific purpose of murdering him, and thinks that her tale of mistreatment will get her off.