Dhaka, Oct. 21 -- year-old Ishiyat Shahriar Oprotim, the son of a university teacher, left home in Cumilla on September 18 with his mother's iPhone to take photographs, his family had no reason to fear that he would never return.

Nearly 24 hours later, his body was recovered from a secluded area of the Lalmai hills. Police arrested four people in connection with the killing who said Oprotim was taken there in an attempt to snatch his phone and was beaten to death during the incident.

The killing sent shockwaves across the country and brought a growing concern into sharp focus: why are some adolescents becoming involved in violence, extortion, robbery and even murder, and what can be done to prevent children from entering criminal networ...