Kiany DeJesus was just 11 years old when her mother was killed by her ex-boyfriend in Greenbelt, Maryland, outside of Washington, D.C. In court Tuesday, the daughter watched him get sentenced to decades in prison for the 2014 killing – after she used social media to track him down in Mexico, where he had started a new family. Stream San Diego News for free, 24/7, wherever you are with NBC 7. Emilia Ignacio was killed in April 2014 at the hands of Juan Miguel Roman-Balderas.