MAUREEN Faulkner isn't used to having the cult of celebrity on her side. If actors, singers or intellectuals get involved in the case that's dominated her life for three decades, it's usually on the side of the man who murdered her husband, Police Officer Daniel Faulkner. That list is extensive, to say the least. It includes Maya Angelou, Alec Baldwin, Naomi Campbell, Noam Chomsky, Ben Cohen of Ben & Jerry's, Roger Ebert, Mike Farrell, Henry Louis Gates, Danny Glover, Whoopi Goldberg, Casey Kasem, Spike Lee, Michael Moore, Paul Newman, Peter Norton, Sister Helen Prejean, Rage Against the Machine, Rep. Charles...