According to the story, their mother tried to stop her twin sons Khalid and Saleh from joining ISIS. In response, they lured her into the kitchen where they stabbed her repeatedly and chopped her up with a meat cleaver. The twins then did the same to their father as well as their younger brother who refused to join as well. Fortunately, the father and brother survived:
Hundreds of mourners turned out in the Saudi capital Riyadh on Saturday evening for the funeral of Haila Al Areeni, the 67-year-old mother who was stabbed to death early on Friday at the family home. Her husband and another son, who were also stabbed by the murderers, were still being treated in hospital.
As the mother was laid to rest, Saudis were left looking for answers to the questions about how the 20-year-old twins, who lived in comfort and ease in a loving and caring home, and who scored well in their schools, could turn into monsters who treacherously stabbed their mother, father and older brother.
According to the reports, the mother had told the twins that she would report them to the authorities if they kept on planning to leave the country and turn into terrorists.
“Investigations revealed that they lured their mother to the storeroom and stabbed her several times. Then, they went to the father and treacherously stabbed him before chasing their brother and stabbing him as well. They used a cleaver and sharp knives they brought from outside. The mother died on the spot and the father and brother were critically injured and were taken to a hospital.”
The answer as to why they joined ISIS is simple- ISIS simply applies Islam to its logical conclusions. This happened in Saudi Arabia, which gives aid to ISIS and is also the home of Islam’s most sacred sites.