Concider what criminal offences may have been committed by both Frank and Peter in this scenario.

Frank is at a party with his girlfriend, June. He sees Peter trying to force himself on June. Peter kisses her on the mouth and touches her breasts before she manages to push him away. Frank rushes over and turns on Peter. He punches him hard on the nose and causes Peter to fall backwards and strike his head on the corner of a cabinet. Peter collapses onto the floor and is unconscious. When the paramedics arrive it is too late and Peter has died.
Consider what criminal offences may have been committed by both Frank and Peter in this scenario.