O.J. Simpson Blasts Henry Ruggs' 3-10 Yr. Prison Sentence, 'Math Doesn't Add Up'

O.J. Simpson doesn't understand how Henry Ruggs drove over 155 MPH, intoxicated, killing a 23-year-old and her dog, but could be out in a few years ... while he received a 9 to 33-year sentence in the same courthouse for an armed robbery where no…