A former St. Martin Parish inmate who admitted to kidnapping and raping a jail guard was sentenced on Tuesday to 50 years in prison, KATC-TV reported.

Melvin Celestine, 46, pleaded guilty last year to attacking a guard in 2013 and holding her hostage in the jail’s laundry room for more than an hour before surrendering to police, according to the report.

Read more at KATC-TV.