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Mormon document forger and bomber Mark Hofmann is no longer serving a lifetime prison sentence from a maximum-security prison cell.

State prison officials on Monday confirmed Hofmann, 61, was moved out of maximum security housing at the Draper prison to the Gunnison faciltiy in December of 2015.

The change was part a routine housing evaluation to determine whether maximum security inmates are appropriately housed, prison spokesman Steve Gerhke said.

"Obviously the crime was a long time ago and his notoriety had kind of subsided," Gerhke said. "And he hadn't been in constant trouble or a management problem."

In the 1980s, Hofmann used his considerable artistic skills to earn millions forging historical documents, including many related to key figures in the early Church of Jesus of Christ of Latter-day Saints. Among his clients were well-known historians and Mormon church officials.

In 1987, Hofmann pleaded guilty to two counts of murder in connection with October 1985 deaths of Steven Christensen, a document collector, and Kathy Sheets. Both were killed when nail bombs built by Hofmann detonated.

Hofmann built the bombs amid rising suspicion about his work and pressure to repay hefty bank loans.

A third bomb detonated on Hofmann himself as he was sitting in his car.