What was the old detective game Yahoo?

i believe it had Mr. (Something) and was about of all the people living in a mansion who killed the rich old lady i believe, and with who or what. I remember a few things like eventually the house got bigger you had to look at the clues given, deduce who was in the room and eventually who did it and what their motive was, I remember a baby, and s women named scarlet, a fat rich guy, a maid, maybe a son, and tons of other suspects, motives like wealth or the deed, weapons like rat poison revolver and such, I really miss the game and cannot for the life of me remember or find it, it was on yahoo years ago! HELP ME PLEASE