Love issue blackmailing and threatening

Hi I'm priya, I loved a for 2 and half year at the beginning he was good and past 1 year he started giving me mental torture he will insist me to do whatever he is saying .. I started avoiding him and he started threatening me like if you leave me I'll come to ur home and will courier the pics which we have taken while loving now I told everything to my family without my acceptance my parents is not ready to marry me to him .. now he sent the pics of us through courier to my home address we spoke with his parents but he is not afraiding for anyone . Can you tel me wat we can take next step .. he tortured me like anything like you should come and here or else I'll come you ur home n all ..