A look at how the murder of a student in Pakistan earlier in 2017 after he was accused of blasphemy has impacted on the country.

A brilliant student, Mashal Khan, was brutally murdered by a mob on a university campus in Pakistan earlier in 2017 after he was accused of blasphemy. The killing caused widespread outrage in Pakistan and has even led to calls to change the country's strict blasphemy laws. Who was Mashal Khan and why was he murdered? Secunder Kermani investigates.

There are some upsetting scenes in this film which viewers may find disturbing.