At a hearing Wednesday in Brooklyn to clear a man of his 20-year-old murder conviction for prosecutorial misconduct, there was plenty of blame to go around for what went wrong in the case.

Jabbar Washington, who was fingered as the shooter in a 1995 armed robbery of a crack den in Brownsville, became the 23rd person to have their conviction vacated with the help of the Brooklyn District Attorney’s Office’s conviction review unit.