I am guessing my statement was a tad Misread, what I meant was: He killed his Daughter, as that was the statement, But if you kill in Honour of your family, you yourself are already in Dishonour, One should only Kill when his Life is in Danger, THEN you Kill in Honour.
@Loc: Someone with honour would do anything to help his daughter, you know, die for her and stuff. Not kill her and then commit suicide.
Honour can be a bit tricky, Because that same honour states that Defense of your Family comes above all else, in other words (will further on be abbreviated to iow) if a member of the Family or clan has been wronged, any one of those family may Kill the offenders, out of Honour.
Personally I stand By the first, Kill only when in Danger, other is an act in Dishonour.