As per police, Riyaz's sister had earlier eloped with a man from their village who is also from the same community. Riyaz was angry over his sister's affair.
When his father filed a report that the pair is missing for several days with the suspicion that he may have been murdered, the police started looking into the complaint and eventually learned about the horrific incident.
The 19-year-old girl from Ghaziabad was smothered with a pillow by her brothers Tohid and Danish for having an affair with a youth whom the latter did not approve of.