A bestselling author has detailed the indifference Jeffrey Epstein displayed toward the criminal charges pursued against him between 2006 and 2008.In a new column for his Substack, HOWL, Michael Wolff described how "unconcerned" and "uncaring" the disgraced financier was about the investigation. The years-long investigation began after a report was filed with Palm Beach police regarding alleged abuse at his Florida residence.Wolff alleged on Mon…