A girl attempted sucide

Hey i m from Madhubani bihar, i m a final year cse students pursuing in banglore, Yesterday night my class mate called Nd said a boy from bihar blackmailing her frnd,her frnd Nd the boy they meet each other on Instagram 5 years ago his relationship lasted 6 month, but after 4 years the boy trying to contact her and her frnd for her number and after that the boy blackmailing her continuously ,the girl parent are so strict and she is emotionally weak, for the feared of parents she attempted sucide infront of my classmate, me nd my frnd trying to contact with the boy but he didn't receiving the called, one time he picked i said i m brother of her he direct cut the call he only contact with girl, is any one help me to find the details of that boy