en.wikipedia.org/wiki/Honor_killing
I suppose all the perpetrators of honour killing have MH issues too 
In 2011, Belgium held its first honor killing trial, in which four Pakistani family members were found guilty of killing their daughter and sibling, Sadia Sheikh.[10
Ghazala Khan was shot and killed in Denmark in September 2005, by her brother, after she had married against the will of the family. She was of Pakistani origin. Her murder was ordered by her father to save the family 'honour', and several relatives were involved.
France
France has a large immigrant community from North Africa (especially from Algeria, Morocco and Tunisia) and honor violence occurs in this community.[104] A 2009 report by the Council of Europe cited the United Kingdom, Germany, Belgium, France, and Norway as countries where honor crimes and honor killings occur.[105
In 2005 Der Spiegel reported: "In the past four months, six Muslim women living in Berlin have been killed by family members". The article went on to cover the case of Hatun Sürücü, a Turkish-Kurdish woman who was killed by her brother for not staying with the husband she was forced to marry, and of "living like a German". Precise statistics on how many women die every year in such honor killings are hard to come by, as many crimes are never reported, said Myria Boehmecke of the Tuebingen-based women's group Terre des Femmes. The group tries to protect Muslim girls and women from oppressive families. The Turkish women's organization Papatya has documented 40 instances of honor killings in Germany since 1996.[108][
In 2006, 20-year-old Hina Saleem, a Pakistani woman who lived in Brescia, Italy, was murdered by her father who claimed he was "saving the family's honour". She had refused an arranged marriage, and was living with her Italian boyfriend.[117][118]
In 2009, in Pordenone, Italy, Sanaa Dafani, an 18-year-old girl of Moroccan origin, was murdered by her father because she had a relationship with an Italian man.[119][120]
In 2011, in Cerignola, Italy, a man stabbed his brother 19 times because his homosexuality was a "dishonour to the family
Anooshe Sediq Ghulam was a 22-year-old Afghan refugee in Norway, who was killed by her husband in an honor killing. She had reported her husband to the police for domestic violence and was seeking a divorce.
and so on.
Emily do you feel for these perpetrators too?