. >> it was the cold-blooded killing of his own mother that first landed stephen hughley in prison in 1986 when he was just 18 years old. >> we had had problems for years. and it just finally reached a head. a girl that i had a date with called there. and when i answered the phone, my mother, she come out of her bedroom and screamed, "is that another one of your little whores calling here?" and it was just like i snapped. i told the girl i had a date with, i said, "i'll be out there to get you in a little bit, i'm fixing to kill this bitch." and i hung up the phone and i went and got a rifle and shot her. then i carried her and dumped her in the river and went on my date. >> hughley was given a life sentence for killing his mother. but five years later while incarcerated at a different facility, he killed again. >> it was june the 30th of 1991 when i stabbed another inmate 67 times. >> after receiving a life sentence for killing the inmate, hughley committed a second prison murder. he stabbed a counselor 36 times with a homemade shank. >> i mean, it had gotten to the point where he ma