what kind of offence following people committing?

1, The husband always beats his wife whenever he is drunk. The day he was drunk and threatened to punch his wife, but he fell into drunken sleep before he could do so. The wifewent to the kitchen, took out a carving knife, sharpened it and

fatally stabbed her husband while he slept.

2, D elbowed V out of the way, but V slipped on the shiny floor and fell into a

display case. The case shattered and Brian received a severe cut to his face.