Explanation:

- Option 1: It is homicide

- Homicide is a general term for the killing of one person by another. It can be lawful or unlawful.

- Option 2: It is murder

- Murder is a form of homicide where there is intent to kill or cause grievous harm. Deliberate entry into a fight with deadly weapons suggests intent.

- Option 3: It is not murder

- This suggests the killing lacks the intent or malice required for murder. Though unlikely here, it depends on context.

- Option 4: None of the above

- If none of the options correctly describe the situation, this would be chosen.

Answer: Option 2: It is murder