A man described as one of the most dangerous inmates at the Adult Correctional Institutions will serve three more years in jail after he was sentenced by a Superior Court Judge this week for possessing a metal shank he made from his cell door.
Shawn Robinson was found guilty of possessing a prohibited weapon last year. He represented himself at the trial, according to reports.
ACI officials said Robinson is originally from Connecticut and was transferred to the ACI in 2009 after he cut a guard's throat during a riot.
Prison officials found the weapon after a strip search sparked when sent a note to a female guard.
The Providence Journal reported that Superior Court Judge Edward Clifton ordered Robinson to serve three years in addition to the 55 years he is serving for his Connecticut crimes.