>> reporter: only one week into a new year, and richmond police had seven murders that they believed were committed by just two men. those men, ricky gray and ray dandridge, were tracked down and arrested in the early morning hours of january 7th, 2006. matt geary, one of the prosecutors handling the case, headed to philadelphia with a team of richmond investigators. >> by the time we got there, ray dandridge was talking to the police, and shortly after we arrived ricky gray began to talk, and reading the written word of what they had done, you could tell that those seven people experienced what each other did. they saw each other die, viciously. >> reporter: not only did the pair confess to the richmond murders, but ricky gray admitted to murdering his wife, treva