Emily Longley's dad says he hopes to raise awareness of domestic violence - to prevent other young women being murdered.

The 17 year old's boyfriend Elliot Turner was jailed for a minimum of sixteen years on Tuesday for strangling her at his Bournemouth home last May ... while his parents Anita and Leigh were found guilty of trying to cover up the crime.

Speaking to the BBC, Mark Longley says patterns of aggression need to be recognised earlier, before they turn to violence.