LINCOLN, Neb. (AP) — A 23-year-old Lincoln woman who worked as a corporal at the Nebraska State Penitentiary has been arrested after being accused of unlawful acts with an inmate — including creating an email address with a fake name to communicate with the inmate.

The Lincoln Journal Star reports that Andrea Gassman was arrested Jan. 18 and has been charged in Lancaster County.

A Nebraska State Patrol investigator said in an arrest affidavit that Gassman created an email account under a pseudonym and began emailing convicted murderer Bryton Gibbs. The 24-year-old Gibbs is serving a 100-year prison sentence for the 2010 stabbing death of Omaha pizza delivery driver.

The investigator says Gibbs and Gassman talked about their families and having sex with one another.

Officials say Gassman’s actions endangered her and her co-workers.