Luther Unit is a state prison for men located in Navasota, Grimes County, Texas, owned and operated by the Texas Department of Criminal Justice.

[1] This facility was opened in July 1982, and has a maximum capacity of 1316: 1102 in the unit itself, and another 214 in the trusty camp.

Luther is co-located with the state's Wallace Pack Unit, with its own population of about 1500 prisoners.

Essary collected "substantial" money damages in a civil case,[2] as well as a payment from the state and the officer's beach house.

[3] In 2011, within a six-month period, two Luther guards were caught, fired, arrested, and charged with felonies related to bribery and smuggling.