Ok this is tough. Does anyone know how Coleman Kcaj fits in to all this? (This is the order of people leaving or dieing off of the High Jedi Council after Anakin joined) High Jedi Council at the time: Plo Koon Mace Windu Yoda Ki-Adi Mundi Obi-Wan Kenobi Agen Kolar Anakin Skywalker Coleman Kcaj Saesee Tiin Kit Fisto Stass Allie Shaak Ti Agen Kolar (1st...) Saesee Tiin Kit Fisto Mace Windu Anakin Skywalker Ki-Adi Mundi Stass Allie Plo Koon Shaak Ti ? Coleman Kcaj ? (When exactly and between which two people?) High Jedi Council at the end of Ep.III when it is broken: - - Yoda - Obi-Wan Kenobi - - - - - - -
It seems likely that he replaced the Stupendous Disappearing Even Piell. I personally doubt that we'll ever get much more than we have (i.e. just about nothing) on Coleman Kcaj.
Coleman Kcaj actually replaced Coleman Trebor. As to when he died...I'd say he's probably one of the Jedi who gets whacked off-screen during the whole Order 66 thing in RotS.
I wander what happened to Coleman Kcaj or Even Piell maybe we'll see them in the TV Series or a book.