The problem of murder mystory.
Five persons Alice,her husband,brother,son and daughter

Event: One murder.One of the five is victim and one is
Killer.
Rules:
1) Husnband and alice was not together on the night of murder
2) The killer and victim were on the beach.
3) on the night of murder,one male and one female
ware in the bar.
4) The victim was twin and the counterpart was
innocent.
5) The killer was younger than the victim.
6) One child was alone at home.