A Robert Blake murder trial, if it occurs, could turn into a ghostly trial of Blake's murdered wife, whose bizarre past will become an issue for both prosecution and defense. Jurors are likely to hear about the woman who trolled the bars of North Hollywood looking for a celebrity companion, the divorcee who left a trail of ex-husbands and other men who claimed they had been conned out of large sums of money. Defense attorney Harland Braun maintains there were scores of people with motives to kill Bakley. The police contend one man had the most potent motive -- Robert...