Nghèo may face charges of manslaughter or murder for fatally stabbing Giàu after a heated argument over family issues.
In this scenario, Nghèo could potentially be charged with manslaughter or murder based on the circumstances of the incident.
The heated argument and subsequent fatal stabbing could be considered a crime of passion, leading to charges of voluntary manslaughter.
However, if it is determined that Nghèo acted with premeditation or intent to cause serious harm, the charges could be elevated to murder.
The argument between Giàu and Nghèo, exacerbated by alcohol consumption and longstanding family issues, created a volatile situation. Nghèo's threat to Giàu, coupled with the fact that he went to the kitchen, grabbed a sharp knife, and proceeded to stab Giàu multiple times, suggests a level of intent or at least an extreme disregard for the consequences of his actions.
The legal classification of the offense would depend on the specific laws and legal definitions in the jurisdiction where the incident occurred.