murder was devastating and frightening for everyone at the law firm, especially it seemed for scott rothsteineek before, rothstein was toasting melissa after making her partner. now, he was helping her family with funeral arrangements. melissa's aunt, lynn haberl, spoke at the church memorial. >> i could look out from the podium and see a sea of lawyers out there. >> reporter: including scott rothstein? >> including scott rothstein. >> reporter: who actually paid for the funeral. >> he actually paid. he came to the funeral home and -- and paid for everything. >> reporter: three days after the funeral, detectives arrested tony villegas. he was charged with first-degree murder. >> he denied involvement in this. >> reporter: tony's attorney is bruce fleisher. >> they sought the death penalty. >> reporter: police and prosecutors were confident they had a solid case against tony villegas, but something happened that threw the whole investigation into freefall. that's because new crimes were about to be revealed. and new questions were about to be raised about who really killed melissa. and in the