D found V asleep with D's estranged wife. D claimed that V attacked him and that is why he fatally stabbed V. There was no evidence that he lost control.
What happened in Ward?
D lost control after V had attacked D's brother
What happened in Zebedee?
D killed father who had Alzheimer's and was incontinent
What happened in Clinton?
V told her husband (D), that she was having an affair and taunted him about this and the fact that he had been looking at suicide websites. D strangled V
What happened in Asmelash?
D was drunk and claimed that V was abusive making D so angry he lost control and killed V.
What happened in Rejmanski?
D was a former soldier and killed V, who had made negative comments to him about his military service.