<P> Thomas Edward Silverstein ( born February 4 , 1952 ) is an American convicted murderer . He has been incarcerated continuously since 1977 and has been convicted of four separate murders while imprisoned , one of which was overturned . He has been in solitary confinement since 1983 , when he killed prison guard Merle Clutts at the Marion Penitentiary in Illinois . Prison authorities describe him as a brutal killer and a former leader of the Aryan Brotherhood prison gang . Silverstein maintains that the dehumanizing conditions inside the prison system contributed to the three murders he committed . He was held `` in a specially designed cell '' in what is called `` Range 13 '' at ADX Florence federal penitentiary in Colorado . He is currently the longest - held prisoner in solitary confinement within the Bureau of Prisons . </P>
<P> Thomas Edward Silverstein ( born February 4 , 1952 ) is an American convicted murderer . He has been incarcerated continuously since 1977 and has been convicted of four separate murders while imprisoned , one of which was overturned . He has been in solitary confinement since 1983 , when he killed prison guard Merle Clutts at the Marion Penitentiary in Illinois . Prison authorities describe him as a brutal killer and a former leader of the Aryan Brotherhood prison gang . Silverstein maintains that the dehumanizing conditions inside the prison system contributed to the three murders he committed . He was held `` in a specially designed cell '' in what is called `` Range 13 '' at ADX Florence federal penitentiary in Colorado . He is currently the longest - held prisoner in solitary confinement within the Bureau of Prisons . </P>
who has spent the most time in solitary confinement
who has spent the most time in solitary confinement
Thomas Edward Silverstein
Thomas Edward Silverstein