Honor killing for "leaving the house too often"

From Gulf News:

Jordan's Criminal Court has charged a 19-year-old man with stabbing to death his sister in what is believed to be an honour killing.

Al Dridi said the man confessed to repeatedly stabbing his 22-year-old sister to cleanse the family honour because she left the house too often.

The victim is the eighth person to be killed in honour crimes this year [in Jordan.]

Is there any excuse that people don't use for honor killings?