Murray Dowey was just 16 years old when he took his own life.  After enjoying Christmas with his family, Murray found out he had been blackmailed by a scammer and was a victim of 'sextortion.' Just a few hours later, Murray was gone. Now, his family are calling on social media platforms to up safeguarding policies for teens, like Murray. So, what exactly is 'sextortion?' Why is it on the rise? And will Murray’s family ever get justice?  ITV News' Sam Leader tells Faye Barker what you need to know...