Prison (illustrative)
Prison (illustrative)Israel news photo: Flash 90

A convicted terrorist serving a life sentence in prison for masterminding the 1993 World Trade Center bombing has reportedly filed a lawsuit arguing he should be released from solitary confinement.

Ramzi Yousef is attempting to persuade a judge to end his nearly 24-hour solitary confinement at a Colorado prison known as the "Fortress in the Rockies,” The Los Angeles Times reported.

"I request an immediate end to my solitary confinement and ask to be in a unit in an open prison environment where inmates are allowed outside their cells for no less than 14 hours a day," he reportedly wrote in confidential government records obtained by the newspaper. "I have been in solitary confinement in the U.S. since Feb. 8, 1995, with no end in sight.... I further ask not to be in handcuffs or leg irons when moved outside my cell."

According to the report, Yousef claims his due process under the law is being violated because he has no prospects of getting out of solitary confinement despite 15 years of good behavior in prison.

The lawsuit reportedly claims his time in solitary confinement has led to "severe psychological trauma."

U.S. District Court Judge Kevin Thomas Duffy of New York, asserted, however, that, "Ramzi Yousef is a cold-blooded killer, completely devoid of conscience."

Yousef was convicted of masterminding the February 1993 bombing, which killed six and injured more than 1,000. He was also convicted of trying to kill Pope John Paul II and President Bill Clinton, and plotting to bomb planes.

His terror acts were funded by Al Qaeda and his uncle Khalid Shaikh Mohammed, who is allegedly the mastermind behind the September 11 2001 attacks, The Los Angeles Times reported.