Police have launched a website to generate more leads in the murder of Marrisa Shen, six months to the day after the 13-year-old’s body was found in a Burnaby, B.C. park.

Investigators have yet to identify a suspect in the homicide, despite conducting hundreds of interviews, canvassing the area around the crime scene of Central Park and looking over surveillance video.

Few details about the case have been released, but police believe the attack was random.

“We have a list of people we believe