HOUSTON -

A capital murder suspect who escaped from the Harris County Jail early Friday is now back in custody after a half-hour experience of freedom, authorities say.

Jamon Derrell Walker broke away from the jail located at 1200 Baker Street in downtown Houston around 4:35 a.m.

According to the Harris County Sheriff’s Office, a deputy transporting inmates from the jail noticed Walker was in an area where he was not supposed to be and asked him to stop. Walker refused the order and ran past the deputy, making it outside the building.

Deputies launched an immediate search and located the escaped inmate on Lee St and Staples St near downtown Houston 30 minutes later. He was still wearing his county-issued orange pants and had stickers on his shirtless chest.

Walker is accused of killing Gerald Lynn Johnson on July 18, 2013.

On that day, Johnson’s body was found in a church parking lot in the 3900 block of Almeda Genoa around 1:50 a.m. Walker was captured the next day in the victim’s car and has been in jail ever since.

All three downtown jail facilities were placed on lockdown immediately after Walker’s escape. It has since been lifted and all inmates have been accounted for.

Walker now faces a felony escape charge.