A hearing will be held Tuesday in Atlanta concerning the case against the man charged with killing four people in a courthouse rampage.

Prosecutors said in papers filed Friday that Brian Nichols tried to intimidate a woman he is accused of raping.

Prosecutors allege Nichols had access to a cell phone from his jail cell and asked that he be barred from contact with other inmates. The emergency motion also asked for Nichols to be ordered not to intimidate witnesses.

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The prosecution's filing does not elaborate on the escape plot, but a defense motion filed almost simultaneously seeks to bar a fellow inmate whose cell was next to Nichols' from testifying about it.

Prosecutors are asking a judge to order the Fulton County sheriff to explain at an emergency hearing how Nichols' security at the jail is handled.

A sheriff's department spokeswoman — Sergeant Nikita Hightower — said she cannot comment.

Nichols is accused of grabbing a deputy's gun at the courthouse, where he was being tried on rape charges, and killing a judge, court reporter and a sheriff's deputy in March 2005. He also is accused of killing a federal agent he encountered at a home a few miles from the courthouse.