FRANKLIN, Ind. (WOWO): While the nation is infatuated with news surrounding Robert Durst and his alleged involvement in the 2000 murder of Susan Berman, another unsolved murder case is being brought back into the spotlight right here in the Hoosier State. Police hope the three billboards that recently went up on I-65 in Franklin will prompt someone to come forward with information about the stabbing deaths of Blake and Chynna Dickus. The 10-year-old boy and his stepmother were found dead in their Franklin home in July 2006. Officers determined Sean Dickus wasn't guilty of killing his son and wife. No other suspects have been identified through nearly 500 leads in the past nine years.